i did multiple times.
the only issue is that in the Note #4 a program assistant is saying that ECA is verified, meanwhile in the Note #2 an analyst is saying ECA not provided.
i believe they asked for the ECA report number during the EE process, not during the PR application. they also never asked me to upload the ECA report, i recall doing a google search at the time to verify the fact that they don't ask to upload the ECA report, because in thought that was weird. the search showed that they don't ask applicants to upload the ECA document.
i sent them an enquiry explaining the situation and attached a pdf of the ECA report if they need it.