[Publisher: export to PDF is suddenly impossible]

You saved my life! Export to PDF works perfectly with the Beta and I thank you very much for the prompt help...

[Publisher: export to PDF is suddenly impossible]

Windows 11
Affinity completely actual in the 2.2 versions

Since a few days it is not possible to export documents as PDF. Calculation for preview works endless, I gave up after about 30 minutes, trying to export without a preview leads to a unspecific failure notice (Like "Export was not possible"). This also happens resp. happens not, when I try to export single pages of the documents.The documents are not too big and not too complicated. Export as PDF or JPG or whatever is possible without problems. 

But now I am in a hurry to get some things to the printing company...

What can I do?