When I try to open my afdesign file in Beta 1.8.0 it won't open it because it says it is corrupt. The same file will open in 1.7.3. In 1.7.3 when I try to save it it says there is some error and I should report it to the Designer Devs.
One other piece of info that may or may not be relevant is that this file was originally saved with storage using Google file stream.
I've attached my file here
Wwise_Dark.afdesign