In Outlook 2019, NVDA crashes when switching account

[ivnc]

Issue sent by a Spanish-speaking user.

Steps to reproduce:

1. Open Outlook.
2. Group messages by conversation (don't know if in origin account, target or both).
3. Press Control+Y to go to another folder.
4. Expand another account anc press Enter on Inbox ("Bandeja de entrada"). nvda-ofuscated.log

Actual behavior:

NVDA hangs by several minutes and apparently also causes Outlook to hang completely. When running JAWS or Narrator this doesn't happen.

Expected behavior:

Folder is changed and user can read emails normally.

System configuration

NVDA installed/portable/running from source:

Installed

NVDA version:

2020.4

Windows version:

Windows 10 21H1 (build 19043.x)

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

Microsoft Office Outlook 2019

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.

2021.1 Beta: same issue.

If 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?

Not applicable / User not asked to