Hello Edward,
Thanks for reaching out!
How / where are you showing your blog posts?
Are you using a page builder perhaps? Sometimes pagebuilders and some themes handle the blog loop differently than the default so that might influence things.
What I would like to ask you to try is switch to a default theme like twentyseventeen and check your blog page (what you have set under Settings > Reading > Posts page with that if the events show up in the blog loop or not.
If they don’t show up, there could be a bug. If they show up, then there can be something with the theme or how you are showing your posts.
Let me know and we’ll take it further from there.
Cheers,
Andras