Hey there!
There are a few steps we can take to figure this out. I checked the server logs and don’t see anything unusual, but I’ll do a bit of a deeper dive tomorrow.
We recently released patch 7.0.1 which fixes a rare edge case regarding watermarks, more info can be found here. Upgrading to this version might help.
One other thing to note is that an internet connection is required to verify the license key. If a user loses connection to the internet a watermark might be displayed.
If you have any “tech saavy” users, would you be able to ask them if there are any errors in the console when they do see the watermark,
Could you also get them to verify that the request to auth.pdfjs.express is returning a 200 response and is not erroring?
We’ll do our best to resolve this ASAP!
Thanks,
Logan