ARM Codesign problems

What are the differences between Intel and ARM in regards to codesigning? Codesigning for Intel works fine. But ARM only gives me errors when trying to notarize:

  "path": "Mail_Archiver_X_Installer_6.1.0b1.dmg/Mail Archiver X Installer.app/Contents/Resources/macOS ARM 64 bit/Extras/Mail Archiver X Uninstaller.app/Contents/Frameworks/MBS_Util_Calls_Plugin_20445.dylib",
  "message": "The binary is not signed with a valid Developer ID certificate.",
  "docUrl": null,
  "architecture": "arm64"
},
{
  "severity": "error",
  "code": null,
  "path": "Mail_Archiver_X_Installer_6.1.0b1.dmg/Mail Archiver X Installer.app/Contents/Resources/macOS ARM 64 bit/Extras/Mail Archiver X Uninstaller.app/Contents/Frameworks/MBS_Util_Calls_Plugin_20445.dylib",
  "message": "The signature does not include a secure timestamp.",
  "docUrl": null,
  "architecture": "arm64"
},
{
  "severity": "error",
  "code": null,
  "path": "Mail_Archiver_X_Installer_6.1.0b1.dmg/Mail Archiver X Installer.app/Contents/Resources/macOS ARM 64 bit/Extras/Mail Archiver X Uninstaller.app/Contents/Frameworks/MBS_Util_ControlsThread_Plugin_20445.dylib",
  "message": "The binary is not signed with a valid Developer ID certificate.",
  "docUrl": null,
  "architecture": "arm64"
},
{
  "severity": "error",
  "code": null,
  "path": "Mail_Archiver_X_Installer_6.1.0b1.dmg/Mail Archiver X Installer.app/Contents/Resources/macOS ARM 64 bit/Extras/Mail Archiver X Uninstaller.app/Contents/Frameworks/MBS_Util_ControlsThread_Plugin_20445.dylib",
  "message": "The signature does not include a secure timestamp.",
  "docUrl": null,
  "architecture": "arm64"
},
{
  "severity": "error",
  "code": null,
  "path": "Mail_Archiver_X_Installer_6.1.0b1.dmg/Mail Archiver X Installer.app/Contents/Resources/macOS ARM 64 bit/Extras/Mail Archiver X Uninstaller.app/Contents/Frameworks/MBS_Util_DirectorySize_Plugin_20445.dylib",
  "message": "The binary is not signed with a valid Developer ID certificate.",
  "docUrl": null,
  "architecture": "arm64"
},
{

This is for a self-written installer. But all other apps and helpers have those errors, too. A “codesign -vvvv” says that everything is correct.

Xojo 2021r1, M1, macOS 11.2.1.

I use AppWrapper and not have seen any difference. In other words, no issues here.

Maybe Sam can give more info.

Looks like you need an updated set of MBS plugins.

The MBS plugins are from January this year. They should work.

Gotta fix some other problems first:

Are you allowing codesign app internet access?

And you could use icu version coming with macOS.

Yes

No, the ICU is for SQLite. I need to update MBS to use the internal ICU.