Games not registering three button inputs

[CloisteredNomad]

I was playing the Street Fighter Alpha Anthology on the latest version of PCSX2-qt, and I came to realize that the game would not register more than two button inputs at a time. This is a big issue for that particular game as certain actions require three inputs such as level 3 supers or custom combos. I have tried PS5, Xbox One, and Switch pro controllers but none of them could register more than three inputs.

Is there a fix for this? Maybe some setting I don't have toggled?