# Clones causing crash

**URL:** <https://community.thunkable.com/t/clones-causing-crash/2370764>\
**Category:** Questions about Thunkable X\
**Tags:** crash, clone\
**Created:** [April 13, 2023, 12:49pm UTC](https://community.thunkable.com/t/clones-causing-crash/2370764 "2023-04-13T12:49:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![overshield](https://avatars.discourse-cdn.com/v4/letter/o/e19b73/32.png) [@overshield](https://community.thunkable.com/u/overshield)\
**Post date:** [April 13, 2023, 12:49pm UTC](https://community.thunkable.com/t/clones-causing-crash/2370764/1 "2023-04-13T12:49:05Z")

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I don’t know why this happens, it’s pretty rare, but it does happen from time to time. I’ve only seen this a handful of times. I don’t know what causes it or how to reproduce it from a new project.  
But randomly my app will crash and it’s simply because of the clone existing inside an active block.  
I’ve narrowed it down because in the existing project I can create a new screen, create a button, and then drop an active clone block in there and bam crash once navigating to that new screen. Remove the clone block and then no crash.

@domhnallohanlon any knowledge of this?

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**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/f/0f59f292712368bce16ff80133ae10de8a6f27e8.png) [@system](https://community.thunkable.com/u/system)\
**Post date:** [July 12, 2023, 12:49pm UTC](https://community.thunkable.com/t/clones-causing-crash/2370764/2 "2023-07-12T12:49:39Z")

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