Have you tried setting manual timers when this behavior begins to see if it is a receiver problem or possible a problem with the interpretation of the programming data by the receiver.
I.e. the receiver sees the start of the program as beginning several minutes later than the display shows, maybe a problem with the data that your receiver is sensitive to.
Just throwing things on the wall to see if anything sticks.
I.e. the receiver sees the start of the program as beginning several minutes later than the display shows, maybe a problem with the data that your receiver is sensitive to.
Just throwing things on the wall to see if anything sticks.