Steps to reproduce:

0. use a braille desplay
1. open new windows-terminal
2. in power-shell execute "ls"
3. move revue cursor up with num7

Actual behavior:

whole line underlined by dots 7, 8

Expected behavior:

only the first cell is underlined by dots 7, 8

System configuration

NVDA installed/portable/running from source:

installed

NVDA version:

2020.2beta1

Windows version:

Windows 10Ver2004 (64-бит) build 19041.330

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

Windows Terminal Preview 1.1.1671.0

Other questions

Does the issue still occur after restarting your computer?

yep

Have you tried any other versions of NVDA? If so, please report their behaviors.

not applicable because 2020.2 is first version wich properly supports windows terminal

If addons are disabled, is your problem still occuring?

yep

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

yep. but i think this is not applicable too.

FYI: @codeofdusk