Note: I have also opened a ticket with Make but wanted to post here as well.
I have a scenario set up in Make that should be triggered by a survey being submitted to our Survey123 form. It listens for the submission, then sends an email to a designated group of contacts based on the answer to one of the questions. When it works, it works phenomenally! Recently, however, the scenario has failed to trigger, and it looks like Survey123 might not be sending data to Make. This happens somewhat sporadically (or at least not in any pattern I've figured out), though I will note that it appears to have increased in frequency after our agency made multifactor authentication (MFA) mandatory on June 26th.
Make has attributed the issue to submissions coming from duplicate creators, but this doesn't hold up in earlier submissions (rows highlighted green triggered the Make scenario, rows highlighted red failed to trigger):

Has anyone dealt with and/or solved a similar problem? The automated email summaries have been fantastic in monitoring our field progress and troubleshooting, so we'd love to continue using it. Please let me know if I can provide any additional information.