I briefly checked the MC2 analog dewhitening filters.
It turned out that the switching of the dewhitening filters from epics worked correctly except for the UR path.
I couldn't get a healthy transfer function for the UR path probably because the UR monitor at the front panel on either the AI filter or the dewhitening filter maybe broken.
Need a check again.
Tomorrow I'll take a look at the binary outputs and see why the analog filters aren't actually changing.