Background of the issue:
I am trying to ensure that the single events on The Events Calendar don't end up with a 404 error. Currently, deactivating WPML is the only way for the page to work. I've shared the links below. Currently, your colleague is fixing another issue, so the error page might not be viewed, but it goes to 404. Link to a page where the issue can be seen: hidden link. I expected to see: hidden link. Instead, I got: hidden link use 'dev' and 'dev' to get in - without the quotes.
Symptoms:
The Events Calendar single event is going to 404 when WPML is enabled.
Questions:
Why does the single event page go to 404 when WPML is enabled?
How can I prevent the single events from ending up with a 404 error?