Yeah it's a common thing buddy.. Update V2 which was supposed to bring 'perfect quantized effects' suckz!
Yes I love their effort in making a new update.. but the timing with most effects is worse then without the whole quantize.
Especially Echo, Sliproll..
Also your problem is one of the many I encountered.. I just turned off Quantize in the menu to have good BPM lock now ;) (Or I just tap)
Hopefully they will once fix this.. ;)