# Blank Screen on "Screen Stars/Opens" block **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [May 15, 2020, 1:01pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788 "2020-05-15T13:01:16Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 15, 2020, 1:01pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/1 "2020-05-15T13:01:16Z")
Hi everyone, i’m experiencing a problem with screens: Once I navigate through screens everything works good but, when i’m adding a block-event on screens starts or opens i have a complete crash on the Thunkable live test and it shows me a blank screen. Here are my blocks: ![Immagine](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/7/57339e7f91980f7d0fdcd2b3eb8846dfdc13bf21.png) ![Immagine2](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/2/227f31d7a7cdb46d113f9d0c05333c66b3ea2cf7.jpeg) Is this something I am doing wrong? (all the variables contain values) ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 15, 2020, 1:29pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/2 "2020-05-15T13:29:01Z")
Little update, seems like that te problem is on the “from list\_viewer - set text”. Still have trouble with it… ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 15, 2020, 9:14pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/3 "2020-05-15T21:14:13Z")
Hi! Anyone can help? Thank you very much in advance ---
**Author:** ![mattia.guariglia](https://avatars.discourse-cdn.com/v4/letter/m/a9a28c/32.png) [@mattia.guariglia](https://community.thunkable.com/u/mattia.guariglia)\ **Post date:** [May 15, 2020, 11:21pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/4 "2020-05-15T23:21:23Z")
I have a similar problem too ---
**Author:** ![paulmw](https://avatars.discourse-cdn.com/v4/letter/p/22d042/32.png) [@paulmw](https://community.thunkable.com/u/paulmw)\ **Post date:** [May 15, 2020, 11:49pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/5 "2020-05-15T23:49:08Z")
@maurizio.polverini89 Can you post a link to your project? ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 16, 2020, 12:13am UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/6 "2020-05-16T00:13:58Z")
Sure [https://x.thunkable.com/copy/5a15bcc5b6cc45da36f1c308c6ae71ad](https://x.thunkable.com/copy/5a15bcc5b6cc45da36f1c308c6ae71ad) ---
**Author:** ![1k2alfa](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/1k2alfa/32/69122_2.png) [@1k2alfa](https://community.thunkable.com/u/1k2alfa)\ **Post date:** [May 16, 2020, 1:28am UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/7 "2020-05-16T01:28:33Z")
I’m experiencing the same problem but I think it’s not related to the list\_viewer, but with the blocks of local DB and Local storage. at least for me the problem started with these two blocks in particular and just in one screen, the others design screens and blocks woks just fine. waiting for a solution I hope ---
**Author:** ![paulmw](https://avatars.discourse-cdn.com/v4/letter/p/22d042/32.png) [@paulmw](https://community.thunkable.com/u/paulmw)\ **Post date:** [May 16, 2020, 1:47am UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/8 "2020-05-16T01:47:45Z")
@maurizio.polverini89 Just went through your project. The problem is that a list view can’t show a list of list on mobile. A simple example of the cause of the crash: [https://x.thunkable.com/copy/e251b31373e4afdee43292e992e7fd57](https://x.thunkable.com/copy/e251b31373e4afdee43292e992e7fd57) In your app, “app menu” contains the list “app ingredienti\_presenti”. When the value of “app menu” is used by the list viewer (through local storage), it causes a crash. ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 16, 2020, 10:39am UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/9 "2020-05-16T10:39:44Z")
Hi paulmw and thank you for taking time trying to solve my problem. I have now resetted the variable to be shown in the List\_Viewer, now it cointains no longer a list of lists but just a text-JOIN of one text and a numeric value. I am still experiencing the same old problem, it still crashes. Here the relevant block: ![crash_thunkable](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/5/4/54bd3327d1e16ed2dc732fe83490f14a1d6bf506.jpeg) where “Nome\_Ricetta” is the name of the dish, and “somma” is the sum of the cost of every single ingredients (not done by listing). Hope to solve this. Thank you very much ---
**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\ **Post date:** [May 16, 2020, 12:36pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/10 "2020-05-16T12:36:18Z")
@maurizio.polverini89 Have you declared app menu as a list (either during initialization of the variable or anywhere else?) ---
**Author:** ![maurizio.polverini89](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/maurizio.polverini89/32/145191_2.png) [@maurizio.polverini89](https://community.thunkable.com/u/maurizio.polverini89)\ **Post date:** [May 16, 2020, 1:24pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/11 "2020-05-16T13:24:35Z")
Yes, i did. I have initialized it as empty list. ---
**Author:** ![jared](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/jared/32/138473_2.png) [@jared](https://community.thunkable.com/u/jared)\ **Post date:** [May 16, 2020, 11:04pm UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/12 "2020-05-16T23:04:55Z")
And it always Crashes when you add that value to a list, or after added to the list and when trying to save to local dB? Can you try printing the value of each variable only to a label when you press the button. If that all works. But the code to add the joined text to a list. Then print that list to a label. If that works. Try to save it to the localDB. ---
**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:** [November 8, 2024, 11:29am UTC](https://community.thunkable.com/t/blank-screen-on-screen-stars-opens-block/567788/13 "2024-11-08T11:29:13Z")