NVDA sometimes stops processing all UIA events until it is restarted

[Neurrone]

Steps to reproduce:

1. Do something such as causing large amounts of text to be written to the console. Its the most reliable way I've gotten this to happen so far, but by far not the only way.

Actual behavior:

In the start menu, try typing. Alt tab to the command prompt and attempt to use the review cursor to review text. Nothing happens.

Expected behavior:

Both things should work.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

alpha-20581,8d5d1802

Windows version:

Windows 10 2004

Name and version of other software in use when reproducing the issue:

Other information about your system:

• The selective UIA registration setting was not enabled
• Use UIA in the command prompt is enabled

Something else that might be related to this happens with Unigram. I realized that the first time that Unigram starts when you first restart a machine, NVDA always fails to read anything when arrowing about. It requires you to restart Unigram for it to read normally.

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 addons are disabled, is your problem still occuring?

Unknown

Did you try to run the COM registry fixing tool in NVDA menu / tools?

No

[LeonarddeR]

What happens if selective UIA registration is on? Do you also suffer from this?

[Neurrone]

Will try it and see, haven't experimented with turning on the setting yet.

[Adriani90]

@Neurrone could you please give an update? Thanks.

[Neurrone]

Have enabled the option, but I'll need to leave it on and test for several weeks before knowing for sure.

[codeofdusk]

Duplicate of #11002.

[Neurrone]

Closing in favour of #11002.