Events calendar said their update fixed it, but I have the current versions installed. Waiting for their response again.
From Events Calendar:
The Events Calendar Support (The Events Calendar) May 8, 2023, 14:40 CDT Hi there, We’re back with some good news! This issue with Zapier connection not working due to recent update in JWT/Firebase is now resolved. Please update our plugins to their latest versions to apply that fix to your site. As always, we suggest testing updates on a staging site first and having a recent backup, but it should all be smooth sailing. (https://theeventscalendar.com/knowledgebase/k/creating-and-using-a-wordpress-staging-site/) Best regards,Iris
Same problem here. Going to try rolling back. Have a ticket with Zapier and will update with a response.