Layers get cropped when moved to other artboard?

Hi

I've got a document in Photoshop 23.2.2 and I'm seeing some perplexing behavior.  I don't know if something's corrupt or there's a setting somewhere that I should know about.

I've got a document with several, differently sized artboards. If I duplicate a layer from one artboard so it appears in one of the others, it appears there, as intended. But however the layer appears cropped in the new artboard, it treats it as really cropped. Like if I move it, it won't show the full object on the layer, just the part that had initially appeared, cropped. Missing the part I'm trying to bring into the artboard. I can overcome this by moving the layer up or down in the layer stack in the layers palette. Then the full object on the layer appears again. This is a klunky workaround. What am I missing here?

Thanks if you've any clues!

best,
kurt