Hey I am copying from another thread just in case it needs to be here:
Hi there, after having issues myself on an m1 Pro Macbook Pro I looked into the error message being produced. My symptoms where intimidate crash after trying to launch the app. There were no /Application Support/Zwift files to remove as this was after a fresh install. I tried manually launching the app from the terminal with rossetta to no avail either.
The fix (or workaround) I discovered after reading through the crash report was to remove the app signature, as the error message was “attachment of code signature supplement failed: 1 apple m1”. To remove the signature from the Zwift app, run this in your terminal: sudo codesign --remove-signature /Applications/Zwift.app . It will ask you for your password, enter it, and hit enter.
This fixed it in my case, be cautious though and don’t start removing signatures from other apps you have downloaded as signatures are meant to prove the app came from a certain developer. It is safe in this case as we all know where we downloaded Zwift and who they are.
Hope this helps someone!