USB memory stick always returning to first track when car starts DS DS 3

This fault just happened out of the blue. May have been an upgrade available but this was out of date when the problem came to light. Not to be beaten, many hours were spent using plain logic. In a nutshell the problem was cured by removing just one track in one folder. Probably irrelevant but the track was ‘Sam Ryder…Spaceman’ Everything back to normal!

The stick is a Sandisk Ultra USB 3.0, 32 GB

Hope this helps someone 🙂