@monchote Exactly! This hack DID fix my 2 player issue (in 3.0 beta). I never actually had the original auto fire issue in the first place. 3.0 (proper) seems to have undone that fix. Whether it was an accident or not, it worked.
@feederchain I have the Xin-Mo 2 player (or at least that’s what I paid for) but it shows up in Retroarch as a “THT THT 2 Player USB.” From what I understand, they’re essentially the same hardware.
Please let me know if I can be of help testing anything.