Low Zakum Bugs (?)

Description of the bug: (optional screenshot/video): There's a few that I've noticed.

1) When I first started playing you couldn't use a mount in Zakum, then there was a brief period of time where you could, and now you can't again. Not sure if it was intentionally removed or accidentally.

2) Related to 1 -- there was a period where you can't down jump the platforms in Zakum, then a period of time where you could, and now you can't again. Intentional or not intentional?

3) This might be because of the HD client, not sure. You should be able to stand where I am in the picture and duck to avoid red pillars. It no longer works. Not sure if it's because I'm not on HD client or if it's just broken.



4) My friend (a bishop) noticed this:


What is supposed to happen?: See above.
Where did you find and/or notice this bug?: Went to Zak today and wanted to stand >>> because I hate getting stunned.
A step-by-step guide to re-producing this bug (optional): Go Zak.
Extra information (optional):

 

I'm pretty sure from what I remember doing that you could be anywhere beneath that ledge and be fine; I did shuffle around a couple of times when I was on that side and it kept hitting me. I moved back though because we'd already used res and I didn't want to die.

I'll try it again when I get a chance but it's probably more convenient for a GM to check.