Steps to reproduce:

In a WinUI application using the Windows App SDK 1.6.
Perform mouse tracking.

Actual behavior:

Does not report what is under the mouse.

Expected behavior:

Report what's under the mouse

NVDA logs, crash dumps and other attachments:

System configuration

NVDA installed/portable/running from source:

install

NVDA version:

alpha-34581,32245d46 x86

Windows version:

Windows 11 22H2 (10.0.22621) workstation AMD64

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

WinUI application using Windows App SDK 1.6.
For example, PowerToys v0.86.0
Or create a blank WinUI app in VS 2022

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.

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