We got informed about a bug where
1. When an expression pedal is connected to Exp Input 1, Exp 2 will be activated while Exp 1 is in use. That means that on the LCD screen, you can see the Exp 2 position changing while using Exp 1.
We have released a potential fix in v2.5 beta, where some users have reported the issue as fixed. Do let us know if otherwise.
I'll upload the fix for the v2.4 stable release soon.