Thanks PepitoGrilloOSX for your work.
Seems the notarized version has problems changing the incoming and temp directories. The old non notarized version is working as expected.


This is related to the "sandboxing" of the application, not with the notarization. Unfortunately, aMule base code is not Apple "sandbox" aware, which means that it does not ask for access permissions to user for the paths outside the sandbox, and so, macOS blocks the access.
Right now I am working in a new binary, trying to avoid the sandboxing limitations, and adding "dark mode" support to aMule 2.3.3.
Well see...