I did, twice now just to make sure. I have rebooted the Mac but still it doesn’t see the 3D printer.
I just looked at github but I don’t see any extra information which is helpful.
On my older macbook, it was working witht the CH34X 1.3 driver, which was automatically copied to this newer imac (I have migrated my whole account).
Also, I read on the forum that more people are having issues with High Sierra in combination with the Snapmaker.