Cannot use star power button (select) for overdrive on Wii GH5 [Beta 3 - Raphnet]

[Wagsii]

• Attempting to remap this button to overdrive in Fortnite doesn't register as a button press. However, I can press this button to get Fortnite to swap from keyboard controls to guitar controls, so it knows it is being pressed.

• I checked the box for "Disable Tilt and use Select for Tilt/Overdrive." If this box is not ticked, the select button opens a menu while you're playing.

• I have verified that my select button works outside of this situation.

• All other buttons on the guitar work.

• "Ignore Controller Input" is turned off in my Fortnite settings.

• I read the list of known issues. One of them reads "Whammy and tilt, for overdrive activations, can be tempremental." I assume this is not referring to my issue.

• I have attempted restarting Windows.

Am I missing something?