Have a problem where my editor(5.0.3) stucked permanently in activated F10 mode. Mod is permanently active even after editor restart and i can no longer dock-in bars, they always got auto-hidden.
What i tried:
Remove all saved\itermediate from project;
Remove all saved\itermediate from engine;
cleanup my %user%\ folder as much as i can;
editor settings → reset to defaults;
Checked in editor settings that f10 bind is still in place.
I should note that F10 does not work to toggle the Sidebar if you have recently clicked on anything in the sidebar. You first need to click outside (in the 3D viewport), and then F10 will work as expected.