Steps to reproduce:

1. Open Reaper6.51(Version is not the most important);
2. Press F4 to open the Actions window
3. Press the tab key to navigate to the list1 list view;
4. Select any item in the list view and press the Application key to popup the menu and open "Edit selected custom action/ReaScripte";
5. You can then use the Tab key to find the List 1 and List 2;
6. Please press NVDA +numpad4/6 in List 1 or List 2 to navigate the list item;
7. Press NVDA +Numpad Divide in any list item;

Actual behavior:

Perform step 7 NVDA does not move the mouse pointer to the current navigator object but somewhere else

Expected behavior:

Perform step 7 and the mouse pointer will be moved to the current navigator object

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

2021.3.3

Windows version:

Windows 10 21H2 (x64) build 19044.1526

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

Reaper6.51

Other information about your system:

None

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.

alpha-24896, The problem can also be reproduced

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