Photos can no longer save for extensions

ZBarany wrote:

My extensions in Photos stopped working since I moved to Catalina. "Unable to save changes for ..." Any fix anybody?

Can you paint a bit of a bigger picture here—where and how are you trying to accomplish this?

How to edit with third-party apps and extensions in Photos .

Use Project Extensions to order print products in Photos after September 30, 2018

ZBarany wrote:

Sorry for the short description, but basicly this is it. When I try to edit photos with my good old extensions like Noiseless, Intensify, Aurora, I receive an error message that "Unable to save changes for XY An error occurred while saving. Please try again later."

Noiseless, Intensify, Aurora (?)—

if these are all third party (extensions) I would look for updates that are more Catalina compatible, visit the corresponding developer website for support / updates /help.