Clip Zip weird behavior

By any chance, is the player’s USB mode, under Settings, set to MTP mode or to Auto (which will try to use MTP mode)?  MTP mode can cause display issues.  MSC mode, in contrast, just seems to work trouble-free (and will work with everything but DRM’ed files).  You might try reformatting to clear all the content off your player and then try wth the player set to MSC.