Body Pressure and mount

Describe the problem. Be as specific as possible!:

So whenever I use body pressure and then mount up, the mount replaces body pressure. It's sort of annoying, since, if I want to get somewhere quickly to keep the combo, I need to recast it every time I use my mount. Anyways, currently lv 102, max body pressure, and I'm using the first mount (lv. 50)

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I don't think that's a bug. Power Guard also disappears when you use mount.
You can't fight while mounted, which means you can't do damage while mounted.
These skills, while considered defensive, do deal damage to the enemies. So, can't have that while mounted.

Yeah, like Sapta said, its not a bug. You're not supposed to be able to attack while you're on a mount so skills like that get turned off. I don't think summons does any damage either but you can't force the game to turn off your summons.