Minor layer color bug
If you have a layer twirled open with a custom layer color and you switch to a new layer color the child objects don't change color in the layer panel. They do show up if you twirl up and down the layer contents.
Stephen Kelly commented
Good luck with getting Adobe to listen and actually fix this. This bug has been there for years and years and Adobe have been aware of it for years and years but as with most things, Adobe simply doesn't care about fixing bugs any more.