Transforming image does wierd things - transform doesnt retain image edges

[AxelMatt]

Please try to disable the option to "Use Graphics Procesor" from Photoshop by going to Preferences, then Performance. Once done, quit & relaunch Photoshop to check if that helps.

If it helps, you can check out the steps suggested here:  https://helpx.adobe.com/photoshop/kb/troubleshoot-gpu-graphics-card.html

If the issue persists, you can try to reset the preferences of Photoshop using the steps described here:

Preferences in Photoshop (adobe.com)

Please backup your settings before resetting the preferences. You can check:

Migrate presets, actions, and settings (adobe.com)

If this all doesn't help, we need more informations aubout your system. Maybe you can post your Photoshop system info. In Photoshop goto Help > System Info and hit the copy button. Then paste the entire informations into this thread.

[Juris5E78]

Tried everything, also tried on different systems - the issue persists: as soon as you put one point using SKEW at very hard angle, or sorta move it down - and then using scale (the one you extend one side) the picture goes into arc similar shape. It really looks like algorythm problem - somewhere calculating how much pixels to extend across a line, it looses some values and gets this logarythmic arc shape, maybe rounding problem?

Does it not do it on your photoshop?

[Juris5E78]

What is interesting that is seems like is also using static xy coordinates not relative to image layer it self - if I rotate it, the affected adges change

Here is a video:

[AxelMatt]

... Does it not do it on your photoshop?

By @Juris5E78

I don't see this on my Photoshop. I can't also reproduce this.

Unfortunately you haven't given us any information about your system.

Please provide a copy of your 'System Info'. This can be get from the Photoshop menu item Help > System Info. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

[Juris5E78]

Here is system info (censored serial number and hard drive path - if its needed I will reupload)

and a saved photoshop file with the error: https://drive.google.com/drive/folders/1CZc7asdzsVSJFhgCjzdUZfLUplRjeYxZ?usp=sharing

[AxelMatt]

As far as I see your system matches just about meets the minimum requirements. 

Your graphic card is very old and not powerful enough. I don't know if this could be the reason for your issue.

But you should update you graphic device driver, There's a update available.

You can also try to rollback to the previous version and check again.

I don't have another idea at the moment.

[Juris5E78]

Yea, its this system, that I have to use most, but at home I have RTX2060S and its the same. Did you tried the psd files? Your's were displayed normal? I have hard time believing that, unless its intel specific on windows. Hmm.. Anyway thank you for all the suggestions. As I can not eliminate the problem and I am able to repeat it on other systems, I would still say its a bug across multiple platforms, just dont know which ones yet.