This issue doesn’t occurs on Kodi 16.
The particular album artist is 2:54. My guess is that Kodi 17 now thinks that “:” on album artist field means 2 separated artists.
This issue is easy to reproduce, just add “:” in album artist field and Kodi will disply as two.
I tried to disable “Show song and album artists” to no avail. I’ve been experienced it since very early releases of Kodi 17, could it be fixed or is there a workaround other than modify the band’ name?