I’m running ActionStitch 1.0.4 (also tried 1.0.0) on a Mac M3. When I try to activate my license it gives me an error about being assigned to a different machine. So, I copied and pasted my new computer’s name onto the license on the Action Stitch website. It gives me the same error, but now the computer name matches mine. My computer name has an apostrophe in it, probably a unicode one - which is why I installed 1.0.4 (I saw another thread that said this had a unicode fix).
I’m ok for the next few weeks because it is in trial mode, but would like to get this fixed in the meanwhile.