Steps to reproduce:
I put a java code that, when runs, launches a UI with a button and a textbox. When the button is pressed, it puts the thread to sleep, causing the UI to freeze. During this time, NVDA hangs and becomes silent until the thread resumes.
Actual behavior:

NVDA hangs and becomes unresponsive.
Expected behavior:

NVDA should announce "blank" or "app is not responding" when the UI freezes.
NVDA logs, crash dumps and other attachments:
Will be attached.
System configuration
NVDA installed/portable/running from source:
Installed.
NVDA version:
2024.2
Windows version:
Windows 11 64-bit, Version 23H2 (OS Build 22631.3737)
Name and version of other software in use when reproducing the issue:
Other information about your system:
Other questions
Does the issue still occur after restarting your computer?
Yes.
Have you tried any other versions of NVDA? If so, please report their behaviors.
No.
If NVDA add-ons are disabled, is your problem still occurring?
Yes.
Does the issue still occur after you run the COM Registration Fixing Tool in NVDA's tools menu?
Yes.