[Bug] Mouse scroll wheel emulation not working

[michaelcrusso]

Describe the Bug

Using a Kyria v2 and "mouse scroll wheel down" doesn't appear to work no matter which keyboard half I place it on, or where I locate the key. This was previously working on a Nyquist (right-hand slave board) a couple of months ago, so I don't know if something has changed, it's a quirk of the board, or there's a problem with mouse emulation initializing. I'll try compiling this myself later on to verify whether or not it's a me-problem.

For context as well, my main microcontroller is a Chinese pro-micro USB-C clone with a Caterina bootloader (ATMega32U4). It otherwise functions flawlessly, but perhaps this has something to do with it?

Additional Context?

[lesshonor]

Mousekeys are not enabled on the Kyria by default.
https://github.com/qmk/qmk_firmware/blob/107ccc56b4cbf15d223e5946c74c8495c160eb7b/keyboards/splitkb/kyria/rules.mk#L11