Steps to reproduce:

• connect a HIMS BrailleEmotion display to USB port if not already connected
• Start NVDA with HIMS Braille display selected
• NVDA should recognize it

Actual behavior:

• NVDA sometimes does not recognize it, especially when the device is seen also as a storage drive

Expected behavior:

NVDA should recognize it

NVDA logs, crash dumps and other attachments:

Log attached

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

NVDA 2024.4.2

Windows version:

Windows 10, latest update

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

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.

NVDA Portable 2025 Beta1, same behavior

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?

nvda_braille_display_not_detected.log