Hi Richard, which installation package are you installing from the
AIJ Installation packages website? We offer both an x86 and arm version for Mac. If you have only tried one of them, please try the other and let us know if you get the same or different result. We expect that the "arm" version is what you'd need for the M3 chip, but the x86 should also work (I think). We have less testing experience on the arm version, so your feedback here would be helpful in potentially debugging the problem.
Karen