Steps to reproduce:

1. With cancellable speech enabled, open two Windows Explorer windows side by side, so you can alt+tab between them
2. Alt+tab between the windows
3. Close one window with alt+f4 in such a way that it brings you to the other window.

Actual behavior:

For point 2: The title of the window is discared as soon as you release alt+tab. However, with rapid alt+tabbing, this means you'll miss the title
For point 3: THe title is also discared

Expected behavior:

In both cases, the title of the Explorer window is discared

Suggested fix

NVDA should never discard focus announcement messages for the foreground object.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

alpha-21145

Windows version:

10 (20h2) Build 19042.546

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

N/a

Other information about your system:

N/a

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?

Yes

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

N/a