While doing 12h Sebring on iRacing, the wheel base blocked at a certain input rotation. It started after 3h30m driving and then a heavy block suddenly happened as you can see on the video. I also sent the telemetry so you can see exactly what happened before the big lock (video). Didn’t hear any USB connection sound and as you can see also on the video was not a PC Freeze because other inputs (like pedals) were working nicely.
That looks a lot like the issue I had where it just stops sending position changes for about a second. See this post SC2 Pro - intermittent freezing of steering input to iRacing