My problem is - my team simply CANNOT start combos from autoattacks. Why ?

I'm an "old" player already, and the further i go, the more absurd things i stumble upon on.

Example, survival trial. I encounter 5 lvls lower enemies than me (I'm lvl 66), with +2 ninjas, with 2k pwr less, with 1k refine stats less...but my combo's simply won't start. It's completely annoying when i see enemy blue hinata cutting through my hinata mistery and starting a combo without problems, while my +3 fully geared ninjas hit only once.

I lie, i do start a combo. Once in 30 tries.

Another example is arena. I already made peace with myself that i need to build a tanky team to be able to absorb all those insane combos which i simply cannot start.

The latest example is the team :

Gakido Sasuke WindMain
x x Hinata
x x x
+ deer pet.

Simulator shows 10x combo (which is true, because i can do it on Kakashi clone) but in combat...pve or pvp...once in 50 tries.

Why ? What am i doing wrong? Any advices ?

Tnx