# Cloning crashes the app

**URL:** <https://community.thunkable.com/t/cloning-crashes-the-app/4108346>\
**Category:** Issues / Bugs\
**Created:** [February 9, 2026, 9:49pm UTC](https://community.thunkable.com/t/cloning-crashes-the-app/4108346 "2026-02-09T21:49:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![john\_shelby\_hhs](https://avatars.discourse-cdn.com/v4/letter/j/7feea3/32.png) [@john\_shelby\_hhs](https://community.thunkable.com/u/john_shelby_hhs)\
**Post date:** [February 9, 2026, 9:49pm UTC](https://community.thunkable.com/t/cloning-crashes-the-app/4108346/1 "2026-02-09T21:49:17Z")

</div>

I have recently returned to one of my old apps, and the app suddenly has a bug in it that is causing it to crash when it worked fine previously. After some isolating of the issue, I have it down to:

I think that cloning a component on a screen that has a data viewer grid on it will cause an app to crash. There might be other combinations, but this is what I have actually tested. To replicate:

- Make a new project
- Add a layout and a label
- Add a data viewer grid. Create a local table, and set the table as the data source of the data viewer (it doesn’t matter what data is in the table).
- Do something that will cause the label to be cloned within the layout

See the following example to see this in action: [Thunkable](https://x.thunkable.com/copy/ac2c6a9fc02128b03fc65370e5d413cb)

Is this a Thunkable bug, or is there something I am missing?