i dont have this problem anymore or at least i can regain quickly. flash doesnt throw off your combo so say you lose on fast blade, flash right after and switch to whoever you lost. other than that watch your aggro guages and hp, a good roh on a yellow oughta put it red. me if its a 3 mob, i dont mark, i att lowest hp and flash in combo. like ot for t5, flash, flash, att small snake, flash, switch to other small savage blade then back to first roh. after that you should be on big snake and maintain flashing in combo. if its a drg or mnk getting down on just one enemy let them get hate if they push you, youre not the only person that can switch targets