Edit menu on test selection has weird UI, specifically in my app

In our app, we noticed that edit menus (i.e. when long pressing in a text field) have weird spacing inside each element. Which, as a result, causes the entire menu content to be truncated.

To be honest, I have no idea how this is being customized (to my understanding it shouldn't be?), but this is a relatively old and large app so something weird could possibly do it. I basically came here for guidance to see if anyone has thoughts on WHAT could possibly cause this customization / padding / resizing of each item, so I can fix it back to the system behavior.

Our app:

System:

Thanks for your help :) Shai

Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. I'd greatly appreciate it if you could open a bug report, include your project and steps to reproduce, and post the FB number here once you do. Bug Reporting: How and Why? has tips on creating your bug report.

Edit menu on test selection has weird UI, specifically in my app
 
 
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