Mad Dog McCree Reload Not Functional

[JeffPack]

OS: Windows 11 Pro
Platform Version: RetroArch 1.16.0 - Opera (1.0.0 100ae1e)
BIOS: Panasonic FZ-10 (U) [No RSA]

Controls:
Gun Trigger: Mouse 1
Gun Reload: Mouse 2
Gun Select: Mouse 3

Expected:
Right mouse button reloads gun.

Actual:
Appears the gun attempts to shoot offscreen but instead shoots the very top center of the screen which does not trigger the reload.
To reproduce this just hit reload while you still have bullets in your gun and notice the bullet hole sprite at top center of screen.

Interesting to note that this functionality works perfectly in Mad Dog Mcree II