Thanks for playing and recording it!
yeah, the screen cue about "E" interactions come later than the "F" ones when you stand in an interaction zone, so i guess it's hard to see when it's avaible
About the bug, once i'll have the next building's floor added over this one, player won't be able to walk (standing) through the vents, and you can't stand back up once you're ramping there cause there's something over your head preventing you from standing