I’m going to take a wild stab at this; no doubt you have already eliminated the usual suspects. But I noticed having similar aux switch / looper issues at the start. Turns out the parameters were triggering on (momentary switch) release.
Aux switches that I’ve always used elsewhere; never adjusted the options (intentionally). I use a pair of Boss FS-6s. Flipped the polarity switches, and that’s what it was. Momentary on switch press.
I’m not projecting that as your issue there. Something I ran into myself.