Not in front of my computer (at work).
If I reply or create a post in the markdown editor, the space key does not work, if I swap to the rich text editor, it works!
It works for either in firefox, so can’t be my plasma configs, weird! It occurs on 2 of my computers, could some kind person test?
I was just in Reddit and tested both editors in Vivaldi and Vivaldi Snapshot and all’s good. I’d suggest you try in private mode where most if not all your extensions would be disabled and see if you still have the issue.
Will do, when I get home, thank you for testing, will disable add-ons one by one.
Works fine here as well.