lnmp when save pictures very slow then turns out to 502 error

Maybe the amount of pictures was too much.

I have the same issue for all the time.

My authors have to save only by 2 images, or it is error by the timeout.

It happening on 2 various shared hosting.

I can provide you with demo access to the admin panel to see it by yourself or can capture a video.

It is bad, cause now we have to work offline – this error erases all the article content

502 error is issue of servies, sorry can’t help.

Yes, you are right.

It took a while to figure out what to do.

The problem were in the Prizm plugin for image size optimization.
May be it will help other users, who are using additional image optimising plugins.