As of January 15, 2020, Edge is Chromium-based. If anything, try Firefox. That said, disabling the "Throttle Javascript timers in background" setting in Chrome does seem to have worked us, so far at least.
"This thread is old" but still relevant, and provided the solution I needed. Our problem was, our primary CUP node was failed over to its sub, so it wouldn't let me assign any users. We had to restart the primary node, at which point we were able to ...
I have this happening right now on an Agent's phone as well, except we're on v10.5. The link Anand provided is no longer valid. Any chance someone could help me out?