Rampart's barrier doesn't work

Ramparts barrier has serious issues deploying for me, I have to reposition and click many times when trying to deploy her barrier. 
I have been maining her for about a month and yes I understand that barriers don't deploy when red.
This is happening on fairly open ground like the hill outside of Train Yard tunnel on World's Edge.
Might be related to latency or server sync? Or Is it still unable to tell you when it can actually deploy on slopes?

Playing Rampart so awful now, the time to switch between barrier and weapon is mind blowing. You have to consider the barrier won't deploy when its showing blue 90% of the time.
I have been completely blinded sided so many times in the last few days, clicking to deploy a barrier, and nothings happening, than I have to madly dodge whilst switching weapons because the barrier didn't deploy and therefore MY WEAPON IS NOT SWITCHING IN. Sitting duck, with no barrier and no weapon! 
So there is a huge delay and pressing decision of: Do I keep PRAYING to deploy this BROKEN BARRIER, or just switch to a weapon, so I can actually shoot in the next five minutes?

Please, someone actually look into it.

If you can't fix broken deployment of barriers, please consider modifying weapon swap from barrier speed.
It feels very much like the game is cheating me every time I play her.