Serviio 1.6 and incorrect album artwork

Since upgrading to Serviio 1.6, on both the Serviigo app on my phone and Mediabrowser over the web, all tracks and albums by an artist display the artwork from the first alphabetical album from that artist. For example, I have 10 albums by ZZ Top but when I look at ZZ Tops albums or tracks, each one displays the artwork for the album Afterburner which is the first one alphabetically. This was working fine in 1.5 so I can only assume this is due to a change in 1.6. Can somebody advise if this has been reported or if there is any way to fix this? Thanks!