IDE erases the text you wrote in the pop-up message

Every time I write something here while the agent is working on a task, if a window pops up between the time I send the text, my text simply disappears completely! It’s so annoying! I have to write it in Notepad and then copy it from there!

It’s been 20 days, and not a single employee has responded. …

True, this is kinda annoying.
You should report this via the in-application “Provide Feedback” section:

Settings → Provide Feedback → Bug Report

Regards