In our environment, we have "office workers" who predominantly have Adobe licenses and "field workers" who all use Bluebeam.
I've recently been told when one of the office workers marks up/makes notes on a PDF with Microsoft Edge, this cannot be seen by the Bluebeam users. I've tested this and the notes can be seen in the PDF preview or when opened in a browser, but not in Bluebeam.
I found one user who is using an old Bluebeam 16 license and they can click on the area where the note is and a box will appear. They can then change the color of the background of that box to white and the note will show.
I've attempted to flatten the original PDF in Adobe with no avail. Bluebeam is not showing any layers in the documents. I tried selecting all the text in the Bluebeam document then copying and pasting into a text document, but the note doesn't appear there.
Any ideas what is possibly going on?