Not sure if you can consider this a bug, but its most certainly annoying.
If i have any image based class in my game and i start up studio, or run the game, with an empty image id, i will always receive this pointless error;
[16:46:28.026 - Image “” failed to load in “Workspace.Part.Decal.Texture”: Unexpected URL]
I’m pretty sure this has always been a thing, and reproducing the bug is easier done than said; Just insert an image based class (like a Decal) and make sure its texture or image id is empty, and then just run the place, and you’ll receive this error.
This is really only a problem if you a developer like me, and you don’t like having your output filled with pointless errors.