Cessna Citation Longitude timer on Primary Flight Displays issue

Please tag your post with #pc and/or #xbox.
I use XBOX Series X with all World Update (1-6) installed, freeware Garmin 1000 update

Are you on Steam or Microsoft Store version?
Microsoft Store Premium Deluxe

Are you using Developer Mode or made changes in it?
No

Brief description of the issue:
If you start Timer on left pedestal (or what is it properly called?) on the left Primary Flight Display, the timer still shows “TMR 00:00:00”…

Provide Screenshot(s)/video(s) of the issue encountered:

Build Version # when you first started experiencing this issue:
All last updates (1.20.6.0)