Clipboard Destroyed by Undo?

[Coil Ninja]

This is my first post on these forums - so hello!

I frequently perform the following sequence, and other sequences similar to this:

1. Smash layers (or some other destructive change)

2. Copy section of image into clipboard

3. Undo once - to fix whatever was done in step #1

4. Paste copied data into image

However, the newer Photoshop updates now appear to destroy the clipboard data on undo (so step #3 makes step #1 pointless). The only way I've found to prevent this from happening is to perform this sequence instead:

1. Smash layers (or some other destructive change)

2. Copy section of image

3. Paste copied data into image

4. Undo (paste)

5. Undo (destructive change)

6. Paste copied data into image (again)

Is there any way to turn this clipboard destruction behavior off? If not, this would be a great opportunity to add a new user preference! Being able to carry clipboard data through a history change is an important part of editing. The clipboard should never be part of the undo history, in my opinion.

Thanks for any help or advice!

[Stephen Marsh]

To start, I'd recommend the use of Copy Merged (which will not cover all destructive changes, but every bit helps).

I'll need to test your findings as this is not expected...

EDIT: I just tested on CC2021 on Windows and did not have this issue. Perhaps you need to backup your various settings and reset your preferences.