This happens more often.You just need to re-clip the layers. This happens when you duplicate and move stuff around. You can try putting them into a group to manage things a bit better.
This behavior is new to the latest update - in past versions of Photoshop when you duplicated a layer that was in a stack of layers which used the same clipping mask...............................
Which version acted differently?
These examples duplicate layer 1 using Right Click
No, if you look closely, I was duplicating the lower of the two clipped layers (layer 1) in each case. I agree the layers above unclip. The point I was making was that the behaviour is unchanged in CS6 , CC2015.5 and CC2017.1.1.
Oh i see, sorry, i missed that. I cannot remember exactly which version I was using but I could have sworn that you could duplicate a layer and have it keep the clipping mask (as i recall it was an older CC version). However, I'm sorry I can't test this directly as I don't have another computer with an older version installed.
Does the same behavior occur in the older versions when you use the Menu action Layer -> New... -> Layer via Copy?