Previously working, but now returns "session initialisation failed"

We have had a definition that has worked for months but now returns the error “session initialisation failed” error. Please advise.
I have tried to reupload the original file, but that errors with the following code (Ref: 3a7623b4-ab83-4232-9cec-26caa7ce5ba7). I have this error on a separate ticket, t may be related.

Can you post the link to the shapediver model that causes the session initialization error? You can send it via pm if needed.

Hi Matthieu

It’s all working again now.