When I run Oracle's VirtualBox (with Windows 7 running), my WinUAE (v4.4.0 64-bit on Windows 10 64-bit) instance pauses and I can't unpause it (I've tried the priority thing but it doesn't help). It used to work before without a problem. It might work for a while (I mean switching between Windows and back to WinUAE) but recently it became a nightmare — the only thing I can do is to quit from WinUAE (the F12 menu usually works but sometimes all is unresponsive and I have to kill the task).
Any idea what is going on?
Update: A fresh discovery. If I switch a couple of times clicking once on the emulated Windows 7 under VirtualBox and on WinUAE it eventually gets unpaused. Then again if I click outside WinUAE it pauses and can't be unpaused. Repeating the process by clicking a couple of times between the VirtualBox screen and back on WinUAE unpauses it again. Really strange behavior.
One more thing. None of my priority scenario has "Pause emulation" enabled.
Update 2: Tried also on WinUAE 4.2.1 — same behavior.