No unfortunately I didn't get it working with Mojave. I tried VMWare fusion and it worked better, but still not great. I the end the solution was to just use a Windows 10 VM and use CS6 on that, it worked without any issues.
I don't know if you have (had) a cross platform licence for CS6 so you could install it on Windows or if that's something you would even want to do, but that's what worked for me.
Nah, just Macintosh licences. I wrote to parallels support hoping they come up with a fix. But first message was a mail response with standard text...