# Critical Error Occured

**URL:** <https://community.thunkable.com/t/critical-error-occured/1250004>\
**Category:** Questions about Thunkable X\
**Tags:** crash, error\
**Created:** [April 28, 2021, 8:15am UTC](https://community.thunkable.com/t/critical-error-occured/1250004 "2021-04-28T08:15:57Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![masoud.3331p](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/masoud.3331p/32/123409_2.png) [@masoud.3331p](https://community.thunkable.com/u/masoud.3331p)\
**Post date:** [April 28, 2021, 8:15am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/1 "2021-04-28T08:15:57Z")

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Hello guys  
today i try to open my own app and its start crash , also i cant open thunkable live in my phone because its crash too  
whats going on exactly? this problem is for all ? or just me?

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**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 28, 2021, 9:02am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/2 "2021-04-28T09:02:52Z")

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I am having a similar problem. The live app on iOS loads my project but whenever i focus away from a text input box, the screen ‘wipes’ white vertically.

I updated to iOS 14.5 today - could this be part of the problem?

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**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [April 28, 2021, 9:04am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/3 "2021-04-28T09:04:09Z")

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14.4 ok

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**Author:** ![masoud.3331p](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/masoud.3331p/32/123409_2.png) [@masoud.3331p](https://community.thunkable.com/u/masoud.3331p)\
**Post date:** [April 28, 2021, 9:04am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/4 "2021-04-28T09:04:17Z")

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did you try to restart phone then test again? some Thunkable Live problem fix by phone restart

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**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [April 28, 2021, 9:07am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/5 "2021-04-28T09:07:26Z")

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Live app in my phone is always ok  
But my relative’s iPhone live is never!

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**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 28, 2021, 9:07am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/6 "2021-04-28T09:07:28Z")

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Unfortunately, I tried a re-start and the problem is still there.

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**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 28, 2021, 9:08am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/7 "2021-04-28T09:08:50Z")

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UPDATE - I have tried text input boxes on other projects and I am experiencing the same problem in all of them. Help!

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**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [April 28, 2021, 9:09am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/8 "2021-04-28T09:09:33Z")

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Maybe it’s apple’s problem!

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**Author:** ![masoud.3331p](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/masoud.3331p/32/123409_2.png) [@masoud.3331p](https://community.thunkable.com/u/masoud.3331p)\
**Post date:** [April 28, 2021, 9:10am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/9 "2021-04-28T09:10:27Z")

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i suggest instal NOX android emulator on your pc , and install thunkable live on it , set screen resultion like your iphone and test your app , it will be usefull

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**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [April 28, 2021, 9:24am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/10 "2021-04-28T09:24:18Z")

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[https://getsupport.apple.com/](https://getsupport.apple.com/)  
Apple support

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<div class="post-metadata">

**Author:** ![tony.ycy.program](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tony.ycy.program/32/100153_2.png) [@tony.ycy.program](https://community.thunkable.com/u/tony.ycy.program)\
**Post date:** [April 28, 2021, 9:26am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/11 "2021-04-28T09:26:20Z")

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Can you Screenshot

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**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 28, 2021, 9:38am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/12 "2021-04-28T09:38:05Z")

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There is nothing really to screenshot - the project is fine unless you enter something into a text entry field. The moment you tap away from the text entry field, the screen goes white. It no longer responds to anything. I suspect it is an iOS 14.5 issue because the project worked fine before the update.

@domhnallohanlon - any chance you could help look into this?

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**Author:** ![jane](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jane/32/27575_2.png) [@jane](https://community.thunkable.com/u/jane)\
**Post date:** [April 28, 2021, 11:51am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/13 "2021-04-28T11:51:41Z")

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Hey there,

Since this is your own post, did restarting the iOS device work for you?

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**Author:** ![jane](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jane/32/27575_2.png) [@jane](https://community.thunkable.com/u/jane)\
**Post date:** [April 28, 2021, 11:53am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/14 "2021-04-28T11:53:47Z")

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Hi there,

I have asked the team if they think this behavior could be caused by the iOS 14.5 upgrade, but it does seem unlikely to me since this action - selecting a Text Input then clicking somewhere else on the Screen - doesn’t seem to interact with any major changes that came with iOS 14.5, like the new App Tracking Transparency feature.

If you create a blank app that only contains a Text Input, and test this app on your iOS 14.5 device, do you see the same behavior?

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**Author:** ![catsarisky](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/catsarisky/32/100661_2.png) [@catsarisky](https://community.thunkable.com/u/catsarisky)\
**Post date:** [April 28, 2021, 7:05pm UTC](https://community.thunkable.com/t/critical-error-occured/1250004/15 "2021-04-28T19:05:28Z")

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I have just updated my iPhone (SE - the old one) to 14.5. I put a textbox on the screen and added an ‘on focus’ event to change a label, using the legacy snap-to-position interface. In Thunkable Live, the app does not crash or otherwise act weird or wipe when the textbox unfocuses.

I also tried the new drag and drop interface and again, nothing unusual seems to happen in Thunkable Live.

Can you share a minimal project that’s acting weirdly?

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<div class="post-metadata">

**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 29, 2021, 2:56am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/16 "2021-04-29T02:56:48Z")

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Hi Jane

I tried a new project and the same thing happens. Attached are screenshots of what happens after defocusing (the wiping actually happens very quickly).

As other people don’t seem to have the same problem I am at a loss as to what to do. I have restarted the phone, done a hard reboot of the phone, uninstalled and reinstalled the Thunkable app, all to no avail. I have also downloaded this test app as a freestanding app and the same problem occurs when I defocus text.

Project: [Thunkable](https://x.thunkable.com/copy/e9e0e1623c98ff4f4b5c4a010880d41d)

 ![IMG_3035.PNG](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/6/561c6f79150ddbaf2c93639be506541c91048c20.jpeg) ![IMG_3036.PNG](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/7/c7d65257685fc48b063151e3bd21f7c1d482658c.jpeg) ![IMG_3037.PNG](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/c/8/c8371d03929014c8024ed20f2457f3a3bc286e92.jpeg) ![IMG_3038.PNG](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/c/ec8d38fe764c139c6d94bef7116317cd23b5c4b1.jpeg) ![IMG_3039.PNG](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/2/828193293ae2e148007fe212588642e320359e10.jpeg)

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<div class="post-metadata">

**Author:** ![catsarisky](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/catsarisky/32/100661_2.png) [@catsarisky](https://community.thunkable.com/u/catsarisky)\
**Post date:** [April 29, 2021, 3:07am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/17 "2021-04-29T03:07:10Z")

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I tried your project, and I’m not seeing that behavior.

When I click off the text input box, the keyboard smoothly moves downward and goes invisible and the text input box slides down a bit into the space opened up. I tried turning the predictive function on (since I see it in use in your screenshot), but no change.

Which iPhone do you have? My SE (the old version) running 14.5 works fine - it’s slow enough that it there were a weird flicker, I’d expect it to be MORE obvious on my phone…

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<div class="post-metadata">

**Author:** ![slothball](https://avatars.discourse-cdn.com/v4/letter/s/f08c70/32.png) [@slothball](https://community.thunkable.com/u/slothball)\
**Post date:** [April 29, 2021, 7:26am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/18 "2021-04-29T07:26:03Z")

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Thanks for trying out the project. I have an iPhone 11 Pro. Everything has worked without a hitch for 5 months until yesterday when this strange behaviour began. I am baffled!

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<div class="post-metadata">

**Author:** ![masoud.3331p](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/masoud.3331p/32/123409_2.png) [@masoud.3331p](https://community.thunkable.com/u/masoud.3331p)\
**Post date:** [April 29, 2021, 8:02am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/19 "2021-04-29T08:02:56Z")

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My Problem Solved with going to setting \> Apps \> thunkable \> clear data  
and then restarting my phone  
i hope your problem be solve too , thanks to thunkable team

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**Author:** ![jane](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jane/32/27575_2.png) [@jane](https://community.thunkable.com/u/jane)\
**Post date:** [April 29, 2021, 8:06am UTC](https://community.thunkable.com/t/critical-error-occured/1250004/21 "2021-04-29T08:06:44Z")

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I updated a device to iOS 14.5 and also do not see this behavior. I tested your app with Thunkable Live and downloaded the app to my iOS device. I hope clearing the app data and restarting the device works for you!

[Next page](https://community.thunkable.com/t/critical-error-occured/1250004.md?page=2)
