Photoshop 21.0.1 problems with saving a PSD files macOS Catalina v10.15.1

Hello,

I have a wierd problem with my psd files.

I am working as photographer and I edit photos with: liquify, bluring, freq separation and I use some plugins.

When I am trying to save as PSD file it works to 40-50% and then freezes. I need to restart photoshop or to force quit.

After restart, when I try to open the psd it looks like in my attachement.

What should I do ? What is this problem ?

My system information:

iMac 27 inch 2019, 3Ghz 6core i5, 40Gb Ram 2667mhz ddr4, Radeon Pro 570x 4GB, macOS Catalina v10.15.1

Photoshop Version: Version: 21.0.1 Release

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