ASo.
theres a few versions of the sound card, and I had similiar issues recently.
Two blue versions
the known green version, that’s common
and the all square green version, you’ve pictured
the early blue /green cards, are in very few games, and later got change to the other variants - before changing to the green version.
Are you sure the machine came with a green version as standard? Are you swapping for same style of green version?
I was told (not sure if it’s correct) that c6 causes issues.