Basically, after clicking right mouse button the menu shows up.
Then I decide not to use any option, so would like to cancel it.
After left click on the app window with left click the context dialog does not disappear.
I have to click on the context menu with LMB again (like to activate it again) and open some sub-menu, then click main app window and then it goes away.
This is very random and I cannot recreate it when I want it, if you ask me to

Also, it is happening on multiple computers.
FreeCommander XE 2022 Build 861 32-bit public; also was happening on all previous versions I was using since I can remember. Windows 10 64 bit.
Is there any trouble shooting I can do to investigate farther?