I have noticed that on 2021.x and 2022.2b.x that if I apply an asset label to a scene, as soon as the scene becomes dirty and is saved, the label simply disappears from the asset and the .meta file.
I recorded a short example.
Is this a known issue? I done recall seeing it on change log known issues or anything, unless I just missed it. I suppose I should file a bug report just in case.