Pse 2020 error could not transform because of a program error when working with layers

[jerrykolter@gmail.com]

I am working in expert mode and have a .psd file with 2 layers. When I try to enlarge the image in one layer using the move tool, I get the error 'could not transform because of a program error'.  I just installed PSE 2020 a couple of days ago and am sure this worked at that time. What could have changed?

I am using a surface pro with 21Gb of free space on my C drive and 8Gb of RAM. 

I tried the same thing on a different computer in quick mode and PSE crashed.

[hatstead · Accepted solution]

The Background layer is a locked layer,

Open a blank layer at the top, and press CTRL+SHIFT+ALT+E. This will produce a stamp visible layer. Try the move tool on this layer,