Terry,
This is the first report I've had of this sort of problem. I'll review some code and try to get some clarity on how this could happen. It's possible there is a issue with the plates app in v5: I've given you access to our beta downloads page (select Updates / Beta Updates). Can you go there and install version 5.13 and let me know if this corrects the problem? (No need to download plates again; those files have not changed).
If this doesn't fix it I will deploy 5.14 with some mods to that app, and we can ship you a new SD card to reset everything.
Please let me know.
Walter