There is not a folder named AppData contained in my username folder. Neither could I find that folder, nor Roaming, nor Steinberg when searching for them in a Finder window (although I did locate the folder Steinberg Dorico in my search, but it was in my downloads folder and it contained none of the sub-folders in the path you gave. I assume this is the program folder I downloaded after purchasing the program). I searched the folder path online, and it seems like it pertains to Windows. If this is the case, is there an equivalent path on a Mac?
I did, however, find a file named VSTAudioEngine found in C:\Applications\Dorico\Contents\Applications, but it is 60MB when zipped, and this page only allows for uploads of up to 2MB, so I am unable to attach it. I have zipped and attached vst2whitelist.txt to this message. Please let me know if there is another way to find the VSTAudioEngine_64 file (or equivalent) on my Mac, and I will send it. Thanks again for your help!
vst2whitelist.txt.zip (1.11 KB)