I too received an update notification about 5.5.2.  The new version correctly identifies my TrackIR 4 in the UI, but it does not activate it.  Re-installing 5.4.2 solves the problem.  I am using the latest version of Windows 11 Pro.
Tom
					Search found 1 match
- Thu Aug 29, 2024 10:23 pm
 - Forum: TrackIR 4
 - Topic: 5.5 messed up my trackir
 - Replies: 5
 - Views: 9819