Well, I talked to the Flextone folks today, or at least one of them.
Wasn't much of a discussion to be honest, I told the gentleman what was happening and his reply was, "must be the batteries, I'll see if I can find some to send to ya."
No questions concerning the problem no nothing.
So, I guess I'll try new batteries and see if that's the cause of the problem.
Just gotta get the weather to cooperate so I can try it out.