I mean, when I play a note, sometimes the first reverse delay comes after 1000ms, sometimes it comes after 500ms, sometimes 700ms, etc..
I tried to change the "time" parameter (as you can see on the uploaded image, right now, it is set to 1000ms), but it does not change anything.
It seems like there is a kind of random option somewhere.
I tried also to remove every other effects but there is still the same problem.
It's quite weird !
Thanks for your help...