Yes, I am getting this as well. TC 12.42.3048.7 x64
Randomly, I'll get an exception panel shown with an exception (ctutil.dll i think). Clicking 'Send' for the error details doesn't work and it states to send manually.
When this happens I just re-run TC and it is OK.
However, I've found that launching TC often takes 2-3 'goes' before it actually launches. Click 'Test Complete 12' in start to start TC and nothing happens (In task manager, a 'consent.exe' process starts but nothing happens on UI). Try a couple of times and eventually the TC splash is shown and TC starts. Possibly related?