Godot version:
3.1.x / 3.2
Issue description:

I think this warning can be safely removed, to not confuse the users ?
I humbly disagree, it helps both the user reporting problems with the assets lib and us keeping track of which assets are at least partially broken. See #27050 and #27117 .
Yeah, its not neccessary, I just thinked this warning absolutly have not dependents on user actions and that is not a correct behavior.
It's still a relevant information though. because something is wrong, and keeping the user in the dark does not seem to be the right thing to do either.
Maybe we can add a note to broken asset in the list, or some kind of ! button with a popup showing the warning.
I agree the current icon display needs some improvements too. Instead of displaying the Godot icon, we should display a "loading" icon while an icon is loading, and a "warning" icon if an asset icon failed to load (this doesn't mean the asset is broken, though).
Update: Pull request opened (#29599).
Closing, as the current behavior is expected. We want to be aware of broken icon paths so they can be fixed :slightly_smiling_face:
Most helpful comment
I humbly disagree, it helps both the user reporting problems with the assets lib and us keeping track of which assets are at least partially broken. See #27050 and #27117 .