Selected List item not removed in main list

[Satvik_Kachhadiya]

I tried to make a feature in my app.which is working on when user selected items in list specific selected items in list removed from main list,
but it’s not work.
How can I make this type of system which is working like selected list in item removed.

I made 2 types of list

1. value - main list
2. Remove from chat list - prepared by user selected items

[Taifun]

what is an example of “value”?
and how does the global variable “Remove_from_chat_list” look like?

generally use Do it to debug your blocks, see also tip 4 here App Inventor: How to Learn | Pura Vida Apps
see also Live Development, Testing, and Debugging Tools

Taifun