Topic: "Missing song" bugs
If a song is recognized as missing by Cog, it will be marked with an "X." Also, when a song is missing, there will be no Growl notification when Cog attempts to play it (and then skip it).
1) Songs that are not found will not immediately be marked as missing.
Say you add a file to Cog then delete that file. Then play that song in the playlist. It will be skipped, but it will not be marked with an "X". (And as it attempts to play it, there will still be a Growl notification.)
Only after a relaunch will Cog mark it with an "X".
2) Songs that were marked as missing will remain marked as missing even if found.
If a song is marked as missing, even if it is then made available again, it will still be marked as missing. (And there will be no Growl notification.)
Once again, it will require a relaunch for Cog to not see them as missing.