Problems with FX in TP

I've run into a bit of a problem with FX on Traktor Pro:

a) When engaging an FX often in rapid succesion, sometimes the FX appears to be active, but won't effect the track. For example with the Slicer, it will stop slicing up the track. Only if I engage the second FX of the same slot (1-2/3-4), it will begin working again.

b) When activating the T3-Delay with an active freeze-button, up until 3 days ago it seamlessly transitioned into the echo-effect. Now the audio drops out for a beat and then it starts to fade out.

Did I change some setting subconsciously or has anyone else encounter a problem similar to this?

Thanks in advance!

silly question, but is that particular fx unit active on that deck?

I'm toggeling activation using a button- thought at first that the signal from the button wasn't going through, but the unit is marked active in Traktor as well.

Are you sure you haven't accidentally added another effect to the button? Maybe a slicer would cause it to sound like it was cutting out when it went back around?

Unfortunately no: I'm using an X1 with 4 predetermined filters, 2 in Advanced Mode, 2 in Chained. I could always do a Youtube-Video of the behavior, but I'd rather had hoped someone could give me an answer on how to fix it.

Try the effect just using a mouse or basic controls outside of your normal ones if you can and see what it sounds like.

I can activate the effect with the mouse and all, no effect. Until I toggle the second effect it won't work at that deck :(