Deezer incomplete songs

[ChromaticManic]

So I've got a Versa 2, and an Amazon Fire tablet that I use the app on (don't own a smartphone), and I can't for the life of me find this specific problem anywhere else. Have a Deezer subscription, made a playlist, etc, and went to download it to my watch. The app/watch both show it download fine, the playlist length and song count according to the app are accurate to what it should be, etc. But the songs just sometimes aren't complete. For example, track A will play perfectly. Track B will cut out at 56 seconds, and jump to the next track. Track C will cut out at 15 seconds, jump to the next. And track D plays fine. And it never changes; A always plays fine, B always cuts out at 56, etc. I've tried re-syncing; and the songs still cut out at the same spot each time. The track length bar and timer at the bottom of the Deezer app on my watch will even show the correct length, but the song still skips part of the way through.

Moderator Edit: Clarified subject

[Rich_Laue]

The Amazon tablet has a Fitbit app that was ported by somebody over to the Amazon the app is also an older version. That might be the problem but unlikely. 

The songs get loaded through the WiFi while the tracker is charging. Putting back onto it's charger may straighten out the issue c

[ChromaticManic]

Unfortunately, no dice. I'm currently guessing that it's probably got something to do with how absolutely inconsistent my Internet is; cutting out quite frequently for a minute or two at a time. So I suppose, if nothing else works, I'll just have to wait until I change ISPs soon, and see if that fixes it. Thanks for the advice anyway, though, it's something to remember to try in the future if I fix this but have it crop up again.