signet of humitiy stripping shadow form

so today i was doing uw hm and was doing four horsemen, and i i also never die tankignone side by myself and that skill nevers hurts me other en makign shadow form recharge, but today i had just put up shadow form agrooed one side and with in 2 sec i died, form shadow form being stripped,

when i died it said that shadow form and shatter enchamnet killed me
so my question i s when sig is used on me with shadow form up , why does it strip thought it only disables the skill not make it strip it also

I dont speak chinese, sorry.

added: I remember someone tellnig me about this, how they strip OB flesh too. Thats why you use an SB monk in UW there, to alternate, when one does get stripped?

i had this problem as well, i was taking a side for four horsemen as well and suddenly my shadow form dropped. i was using the new a/e shadow form to tank and i know it was stripped somehow i know as my shadow form was still recharging when i died, so i dont know what happened there


Edit: I tanked again but this time with no problems so I don't know what happened that last time

I tanked 4 horsemen about an hour ago, Obsidian Flesh. Wasn't touched.

Did 4 Ponies quest yesterday as terra and the day before All went fine.