After the update of Ultimate Pdf from 14.0.1 to 15.0.1 we are facing technical issues to print Pdfs.

Unfortunately, this issue cannot be reproduced in non-production environments, which makes it difficult to investigate. We would like to understand why it occurs in the production environment but not in non-production. The affected web pages require user authentication through roles. However, this behavior was not observed in version 14.0.1, and we could not find any reference to this change in the release notes published before the upgrade.