Stoneflesh aura and Protective spirit bugged

Hi guys,
first of all, sorry if a thread like this exists. I've searched on stoneflesh and SA and couldn't find a thread like this.

Lately, i've been using the combo PS and SA. I noticed the order of casting doesn't matter (yay!) but I, and many others, noticed sth strange: sometimes when both buffs are up you get damage as if SA wasn't cast. Then, a few seconds later, you don't get any damage anymore.

You might think that attack skills get trough, but some of these deal damage and some don't. The odd thing is, it only happens when you recast both spells.
I 'm trying to find out whether the time of casting (recast SA just before it runs out, so it's really placed after PS instead of prolonged. Probably not the solution but who knows) plays a role, but so far no luck.

Does anybody knows if this is a bug or if it's just me missing something?

like what kind of attacks are getting through? for example, armor ignoring shit (assassin atack skills, ele obsidian flame) or like hexes (ss, empathy,backfire). those type of attacks wont be affected by stoneflesh and will only be lessened by ps. or maybe, enemies are jus hittin so hard that some dmg get thru stoneflesh.

I tried it on melee enemies: bladed aatxes, jade armors, jade brotherhood knights etc. Skills like wild blow get trough, triple chop, cyclone axe.
The odd thing is, that the same attack skills doesn't always get trough. In the case of jade armors for example: they use wild blow and I survive, a few seconds after i've recasted the buffs they use wild blow and i get damage as if there is no SA on me.

Assassins and ele's aren't tested yet, but they shouldn't harm me either. All damage (so not life stealing unfortunately) is reduced to 33 max and then reduced with 33, armor ignoring or not. I'll keep you informed about this.