Sanguine Tides and Instant Recover Life Flask bug

i'm using blood mage and i have a life flask with instant recovery (the one with 50% reduced amount recovered and 39% increased charges) i play spark and CoC, but when i die or get stunned/dodge or when i freak out and press a lot the healing button i get healed by it but i don't get charges when casting spark, i'm using Sanguine Tides in blood mage tree, it should charge, so while mobs are hitting me and i can't heal anymore the only fast fix is to pause the game, go to character select and come back and it works again, but it's annoying when it stops getting charges, i must say that normal killing mobs and getting charges also stops working, so even if i kill mobs or cast spark it doesn't recharge at all, not a single charge, it happens often, so someone playing that build for 10 maps will have the same issue as i do