This is what I get when I run the standalone app. I’m using Cabbage 2.8.111.
Exporting Standalone App on Mac 10.13.6
Can you try opening the package contents, and clicking the standalone binary within the MacOS folder?
Ok, I opened the app as a folder and found the Mac executable. It launches a terminal window and seems to launch my app. But I did notice that the name for the app was Effect. I’m not sure what it would have “Effect” like that, but I created a regular synth instrument.
There is no difference between an effect and a synth in the standalone apps.