Searched and saw no one posted about it, if it has been and I missed it, sorry!
I don’t know if this is intended or if it is a bug, not game breaking just kinda annoying for my OCD. xD
But it has become pretty common that I will loot something (not talking about readable material), and after doing so it will continue to sparkle. But doesn’t happen on everything, so why I considered it a bug.
As you can see the barrel is looted (no ability to hit E), but it is still sparkling.