404 errors with single events

I’m getting 404 errors with all my single events with the new version of EC and EC Pro 4.0.6.

Geoff was helpful in sending me the link to the fix:

Post Link: https://theeventscalendar.com/support/forums/topic/release-the-events-calendar-4-0-6-premium-add-ons/#post-1079729

I purged my permalinks back to the default post name, added the code snippet to my Functions.php file and deactivated my Yeost SEO plugin.

The 404s went away, so I added another event. The 404s returned to all the single events. Only this time, all the fixes have been made:
1. permalinks back to default /%postname%/
2. snippet added to Functions.php file
3. Yeost SEO plugin deactivated

The 404s won’t go away. I deactivated all my plugins except the Events Calendar and EC Pro and I get 404s for all my single events.

I’m at a loss.

Rex
https://topbirdingtours.com

https://wordpress.org/plugins/the-events-calendar/