Resize stops working in Quake style

[DVLP]

This happens very randomly and the window cannot be resized anymore. Once it happens it can stay broken for weeks and persists between ConEmu and computer restarts. Hovering mouse cursor over the edge doesn't change the cursor to resize and trying to click and drag doesn't work. This problem occasionally fixes itself. There's something that breaks/fixes the resizing and that state is somehow retained(in config?).

Today I found that disabling/reenabling "Quake style slide down" fixes the problem, good workaround for the time being. The next time I see it broken I'll make a copy of ConEmu folder, disable/reenable Quake style and see if that changed something else. Another observation is that when the program updates itself it doesn't fix the problem so I'm guessing it's some config entry/combination of.

btw. This issue has been haunting me for years so some bug has been hiding there for a while and it's not due to any recent update.