Edit: P.S. I still do think it a pity the 'Visited Stars' filter in the galaxy map drops the ball, in being a bit 'transient' in keeping all the stars you HAVE visited.... as I always found that in-game feature very useful....when I thought it 'accurate'. o7
That bit does seem strange, I haven't noticed any missing stars, I will check when I log into the game. Ok it still shows Beagle Point on my visited stars list and that was over a year ago I was there last, How long ago are we talking about for your ALT CMDR?