Hi again,
I have just uploaded LapTimer v18.0.7 including a bunch of additional tracing to find out where the problem is. Please update to this version first, it should be available within an hour from now.
Afterward, please follow the instruction in
this FAQ. The "trace classes" you need to enable for this case are "Video" and "Overlay". The operation to perform is simply to bring up the Overlay Configuration and press "Overlay". Once you are back (without message), please finish tracing as described in the FAQ. I hope I will be able to find the issue once I receive the log, thank you!
- Harry