If I change any setting on the ‘Cuts/Layers’ panel, the change is immediately apparent in the layers.
If I ‘Assign to layer’, it doesn’t register the change until you either click a layer in the cuts/layers window or select an item that causes another window to open, regardless of type.
Selecting objects on the ‘bed’ doesn’t force an update.
Within the Cuts/Layers dialogue itself, selecting the layer doesn’t force a change - but you wouldn’t expect it to, as it’s already selected as the target for the assign. Selecting another layer forces an update.
It’s really annoying
But not the end of the world.
Mac OS 10.14.6 Mojave