# \[SOLVED\] Web preview crashes with nothing appear on a specific screen **URL:** \ **Category:** Issues / Bugs\ **Created:** [March 20, 2024, 2:23pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313 "2024-03-20T14:23:41Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![phappcoding49umm](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phappcoding49umm](https://community.thunkable.com/u/phappcoding49umm)\ **Post date:** [March 20, 2024, 2:23pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/1 "2024-03-20T14:23:41Z")
I have a screen that has the following components: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/2/82483fe37baa63dfc1bca2d36fc5de8da80f657f.png) Whenever I switch to it in web browser preview, nothing appears. When I switch to other screen, it works fine. It also works fine on thinkable live app Tried publishing web app, no luck I see this errors when switching to the page and it does not appear on other pages: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/3/5/35cbffd5277d3730fb41321284801af98c289240.png) ---
**Author:** ![matt\_conroy](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/matt_conroy/32/150843_2.png) [@matt\_conroy](https://community.thunkable.com/u/matt_conroy)\ **Post date:** [March 20, 2024, 3:24pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/2 "2024-03-20T15:24:05Z")
Thanks for flagging this issue, @phappcoding49umm. Would you mind sharing the project so that we can investigate it further (DM is fine if you do not wish for the URL to be public)? ---
**Author:** ![phappcoding49umm](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phappcoding49umm](https://community.thunkable.com/u/phappcoding49umm)\ **Post date:** [March 21, 2024, 2:40pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/3 "2024-03-21T14:40:25Z")
This is a private project. How do I DM? ---
**Author:** ![matt\_conroy](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/matt_conroy/32/150843_2.png) [@matt\_conroy](https://community.thunkable.com/u/matt_conroy)\ **Post date:** [March 21, 2024, 2:51pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/4 "2024-03-21T14:51:51Z")
You can click on my name in any of my posts in this topic and the modal will appear for you to send me a message. Thank you! ![Screenshot 2024-03-21 at 10.50.30 AM](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/4/1/419b5727be084b50111c7a656c4c61dfc9e9f0ed.png) ---
**Author:** ![phappcoding49umm](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phappcoding49umm](https://community.thunkable.com/u/phappcoding49umm)\ **Post date:** [March 21, 2024, 2:53pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/5 "2024-03-21T14:53:24Z")
![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/d/3/d38dc37f3ee1928759fbe6ef9d91fbd1a04f47f7.png) I cannot ---
**Author:** ![phappcoding49umm](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phappcoding49umm](https://community.thunkable.com/u/phappcoding49umm)\ **Post date:** [March 24, 2024, 8:23am UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/6 "2024-03-24T08:23:44Z")
@matt_conroy Ive made a sharable link [Thunkable](https://x.thunkable.com/copy/928e0f5e397773b093c3cbb045eda4dd) ---
**Author:** ![matt\_conroy](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/matt_conroy/32/150843_2.png) [@matt\_conroy](https://community.thunkable.com/u/matt_conroy)\ **Post date:** [March 25, 2024, 1:42pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/7 "2024-03-25T13:42:39Z")
Thanks for sharing. Has this ever worked or did it happen recently? ---
**Author:** ![phappcoding49umm](https://avatars.discourse-cdn.com/v4/letter/p/2bfe46/32.png) [@phappcoding49umm](https://community.thunkable.com/u/phappcoding49umm)\ **Post date:** [March 25, 2024, 3:02pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/8 "2024-03-25T15:02:40Z")
it has never worked, but the project is a new one also ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [March 25, 2024, 5:27pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/9 "2024-03-25T17:27:02Z")
Hello @phappcoding49umm 👋 Thanks for sharing your project! It seems to be an issue when you use the “set canvas label” and “set stage” blocks when the screen opens/starts or when the variables are initialized. If you remove these blocks it will stop crashing: ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/d/5/d5d5a8ef5b69d9f8e87e440ac30561107e525b18.png) ![image](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/4/2/42528a2874505daa9d5eafe7a19f33996ff8a230.png) We will flag it to our engineering team and provide an update as soon as possible. ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [March 27, 2024, 12:30pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/10 "2024-03-27T12:30:01Z")
Hello @phappcoding49umm I have found a workaround, inside the “When screen open/start” and “when variable initializes or changes” blocks if you add a “wait 1 second” block first, everything works ![image - 2024-03-27T142853.386](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/e/0e1345ac4199196826de4c4e35aac6c6d234aff1.png) ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [May 8, 2024, 12:16pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/11 "2024-05-08T12:16:37Z")
Hello @phappcoding49umm Thank you again for your patience. I would like to let you know that we have now officially released a fix for this bug. Please keep in mind that you may need to do a [hard refresh](https://docs.thunkable.com/getting-started/data-sources/data-sources#hard-refresh-your-browser) of your browser for the changes to take effect in your project. If your [web app](https://docs.thunkable.com/publishing-apps/publish-as-a-web-app-pro) is affected by this bug, you will need to re-publish it for these changes to take effect. ---
**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\ **Post date:** [May 8, 2024, 1:24pm UTC](https://community.thunkable.com/t/solved-web-preview-crashes-with-nothing-appear-on-a-specific-screen/2905313/12 "2024-05-08T13:24:53Z")