Answered
Layer disappeared in Photoshop 2024
This is happening to me too. When I use the rectangle tool to make a background, one of my layers (layer 3 copy) just disappears. 

Branched to new thread.
This is happening to me too. When I use the rectangle tool to make a background, one of my layers (layer 3 copy) just disappears. 

Branched to new thread.
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