Has anyone seen this before?
Yep. If it happens a lot, you may need to replace the TP, the cable, or the safety control board. You can make a case with MyUR and submit the log file to them. They might be able to tell you more.
We had it happen to multiple teach pendants. UR usually fixes them for us. I just wanted to know if anyone experienced this problem before. If anyone knows what causes it and how to prevent it from happening in the future. Thanks.