P: Program error when saving, lag when zooming, changes not reflecting in document window (macOS)

same problem here, quite frustrating, solutions offered by support are not working short of reverting to a prior v of PS!?

I will participate.  I have several problematic files that I have been experimenting with and could easily use them to test a new version.

https://helpx.adobe.com/photoshop/kb/program-error-opening-psd.html#Programerrorwhilesavingfiles 

This link provided above by JeffreyTranberry worked for me on initial test with Photoshop 2021... jury's out on whether the fix stays.

Cuando intento guardar un archivo me sale el error "no se ha podido guardar porque ha habido un error de programa photoshop". Me viene pasando desde que he actualizado al MacOS Big Sur, no sé si es casualidad. Alguien sabe cómo solucionarlo? no puedo guardar mi trabajo y son muchísimas horas!!!. Tampoco me deja exportar a jpg ni a ningún otro formato de imagen. 

I'm having the same issue after distorting an image. Is there a troubleshoot around this? 

@2740634, these are the workaround we have heard help: https://helpx.adobe.com/photoshop/kb/program-error-opening-psd.html#Programerrorwhilesavingfiles Or roll back https://helpx.adobe.com/download-install/using/install-previous-version.html 

@JeffreyTranberry

I am also having issues saving new work with the same error note? is there a work around to save the work for now? 

Having trouble with the same program error with saving on PS!

@JeffreyTranberry  I'd like to help myself but I've got clients waiting on work and can't afford the time, unfortunately.