Prime 4 - after 3.1. update no touch fx and sweep knobs dont work anymore

Engine DJ Hardware Standalone Controllers
2

Dear Juergen,

pls. have a look at this:

https://community.enginedj.com/t/sweep-fx-doesnt-effect-any-longer-in-the-headphones-when-prelistening-after-migration-to-v-3-1-0/49300/7

Dear @Reese,

if necessary from your side, pls. be so kind as to merge.

Thanks in advance.

Brgds from HAM BeatMaster