V8i / TOPODOT problems

I have been having problems with clocking after changing draping distance parameters and / or any command that requires a key in.  Lately, I have noticed that if I mouse click out of the program to my windows 10 desktop then click back into the program it will resolve the clocking issue and continue through the command.  This happens continually and limits the amount of work I can get done.

 Has anybody had these problems and if so have you found a solution?