P: Selection deletes pixels below (windows)

I am sad to say the bug was not fixed in the new Photoshop 2020 😞
I was sure a bug this weird will be on the table

Thanks for looking into this David

As I mentioned, I'd like to do a screenshare to see your exact steps.  It could be a workflow issue and it might be due to a non-standard system setting or component.  Sometimes things misbehave for quite unexpected reasons.  I believe you're seeing something -- we need to nail down exactly what it is and how you're getting it though.

Also, I was able today to try and replicate the bug on two different computers. On one of them the bug occurred, while on the other it didn't. Both were windows 10 OS, with the latest PS version. 

It is not related to Background layer. This happens on normal layers.
Yes, we can do a screen share

Hey Omer, I actually tried 2017 as well (with slightly different steps, cuz multiple-Undo-as-CTRL-Z wasn't enabled then).  I wondering if might be an unexpected result for you rather than a bug.  If your layer is Background, then it cannot have empty pixels -- we automatically fill with your background color.  You can only have transparency if your layers are named (and your format supports it).

If that's not it, would you like to do a web-hosted screen-share so I can your exact steps?  Let me know and I can send you all the info you need.

Thanks,
David

Windows 10, latest PS version 20.0.4.

This did not happened in previous versions. I have just reinstalled PS 2017.1.6 and this bug isn't happening there

Yeah, I'm not seeing a problem.  Are you on Windows or Mac?  Which OS version?  Which PS version?

Thanks,
David

I have described it above, will try to do it step by step to the detail

1. have a layer with pixels in it. 

2. select in whatever method you wish part of the pixels in that layer. 

3. move the pixels you selected only with the selection using marquee tool+ctrl or using the move tool (doesnt matter which)  to an area where they overlap other pixels in the same layer. Stop moving them 🙂

4. Now deselect the selection you have, either by clicking outside of the selection or by clicking ctrl+d.

5. click undo, ctrl+z.

6. Move again the selction, using marquee tool+ctrl or using the move tool (doesnt matter which).

7. Result: pixels below the selected area are gone.