Greetings: I have a new installation of OpenMeetings 4.0.2 on 64-bit CentOS 7; accessing using 64-bit Firefox Quantum 59.0.2 browser.
I can enter a room and upload a file. However, if I then try to drag the file to the whiteboard, the cursor changes to a slashed circle and the file can't be dropped on the whiteboard. I don't see anything in openmeetings.log or red5.log that seems relevant. Please advise how I can troubleshoot this. Thanks, Owen