LP side 2 songs cover art shows disc rather than front

[seedee]

Hello, I have a lot of digitalized LP's (Flacs) that I tag in foobar2000 and embed artwork for front, back, disc... for disc I put the Lp side 1 and side 2 record artwork embeded to the appropriate tracks. When using Minimserver with synology NAS -on all of them, when a side 2 track is playing it displays side 2 disc artwork rather than front artwork?? It does this with yamaha av, bubbleupnp, and olive one. Then I tried each device using the foobar2000 media server to access the same files and they all displayed the side 2 tracks with proper front artwork - so I am pretty sure it is a minimserver quirk.