I have successfully code-signed an AAX on MacOS with a "Apple Development" certificate. This process was... fun? Now it's on to signing the Windows build. I exported my "Apple Development" certificate as a .p12 and moved it over to my windows and imported to certmgr. The thumbprint was used as the input for --signid. I am now getting the following error:
Cannot sign the binary because it has been signed and the original signed data cannot be removed.
I see no signs of a signature when looking at the properties of the file. When I examine the file in the command prompt, I receive signtools errors stating:
This file format cannot be verified because it is not recognized.
Do any of you know what could be going on? I see many people stating one can sign AAX plugins on windows with Apple Developer certificates, but I think this issue is potentially related to me not using a certificate issued by a CA.