Wah is automatically turning on with no reason

[DuDestri]

Hello

I bought the Ax8 a few days ago and noticed that from 30 seconds to 1 minute after I swap presets, it seems like there is an open wah (high end) that gets turned on. Happens on every preset I have tried, ones I have made and factory presets. Also happens on every guitar and every cable I have tried. I also don’t use any expression pedal.

I appreciate any help to fix this.

 

[paranoid]

Is there a wah block in these presets. If so the original owner had them set up to work with an expression pedal you do not have connected. Have you tried a factory reset of all settings?