Eureka!

The problem was that I was trying to see if the problem was related to my personal settings so I remapped it to a rando character. I don't know why the un-remapping didn't happen, but the issue is fixed for me now. Sorry for the additional time spent

Tried this out now, and the issue is not resolved in the 0.17.43 version

Twinsen wrote: Fri May 17, 2019 11:43 am So it's fixed in Version: 0.17.42.
Thanks.

No. Thank you

The key mapping for 0.17.40 is not working for closing windows if set to TAB. Remapping it to e.g. "Keypad -" works.
The following issue has emerged sometime after 0.17.36.

EXPECTED BEHAVIOUR
GIVEN
A key mapping "TAB" for "Close window" option in the Control settings
and
A key mapping "TAB" for ...