This has been going on for quite some time. Not sure but I think this started when I switched from 32bit to 64bit. Currently the MC Server is running v24.0.30 64bit. The only other clue I have right now is that I cannot reproduce this on any of my client machines, except when browsing the tv database in standard view.
It's hard to explain but basically every minute or two MC stops reacting to commands for 3 seconds. That's any commands from keyboard, mouse, or remote. It's like MC just ignores the input or freezes for 3 seconds.
One example is if I go to standard view, Click File, then move the mouse back and forth across the top menu bar (File/Edit/View/Player/Tools/Help). When I roll over each menu item that menu item drops down. If I keep going back and forth, in about one minute the menus stop dropping down even though I'm still moving the mouse back and forth. It's like MC is frozen - the menus are not following the mouse pointer. Then 3 seconds later, it starts working normally.
This also affects theater view, using a mouse/keyboard/remote to navigate around in tv shows or music artists. The "highlight/cursor" in theater view will be moving smoothly around, then after a minute or two it's like MC just freezes for 3 seconds, not responding to the mouse/keyboard/remote, then all of the sudden it will jump like 2 or 3 items over/across.
This also affects rew/ff/jump fwd/jump back/stop/play commands during Tv show playback. For example - I will press jump forward 4 times and the video jumps forward 3 times, but not the 4th time. Nothing happens for three seconds, then all of the sudden the video jumps forward that 4th time.
Meanwhile actual video playback is smooth as butter using ROHQ in 4k. You can see my PC specs and Jmark in my signature. The machine has plenty of power. I have no third party antivirus/firewall. I have Win10 security/firewall completely disabled using gpedit. Running single monitor - hdmi.
I am thinking about moving back to 32bit to see what happens. Before I do anything, just wondering if anyone else has seen this issue? Or has any ideas where to start?