I haven't fully tested the proxy verification. We should deploy some proxy contracts, and try verifying them to make sure all API calls are working correctly and the UI shows the correct state of the verification.
Important here is that the implementation contract needs to be verified before the API call for proxy contract verification can be made. Especially, we should try with only Etherscan enabled, as enabling other verifiers can add some delays to the API calls.
I haven't fully tested the proxy verification. We should deploy some proxy contracts, and try verifying them to make sure all API calls are working correctly and the UI shows the correct state of the verification.
Important here is that the implementation contract needs to be verified before the API call for proxy contract verification can be made. Especially, we should try with only Etherscan enabled, as enabling other verifiers can add some delays to the API calls.