Mouse Wheel Event doesn't work as expected

[StoicSirius]

Using keyboard & mouse to emulate DualShock 4 Controller to play Demon's Souls on RPCS3. Interception to ViGEm. Skip to the third paragraph for the issue.

I used the old UCR before, but I've had issues with keys getting stuck like in issue #173, which usually happened when I was close to a ledge, getting me killed because of it. I eventually switched to RPCS3's keyboard handler (assisted with UCR keys that wouldn't get me killed), One thing I couldn't do with this kind of setup is walking, so I checked if there are any new UCR versions, finding this one.

One of the plugins I use is Event to Button, to let me use my scroll wheel to send D-Pad outputs. I thought to set up Wheel Up for D-Pad Up and Wheel Down for D-Pad Down; except, in practice, scrolling the wheel either way makes it send an output for D-Pad Up. Removing the first plugin to just leave Wheel Down for D-Pad Down—scrolling up or down does absolutely nothing. Am I doing something wrong?

[StoicSirius]

I would like to add that yesterday, I somehow did manage to send an output to D-Pad Down, but it was buggy and sent an output to D-Pad Up at the same time