I’ve found a good solution if you’re using Beaver Builder
1) Disable all BB plugins
2) Start an entirely new page (either with the same info, or, if it’s long and involved, something simple to test) with “Add Page” (“Edit” – not “Quick Edit” if you have to go back to it) – and add in the tickets
3) Check if that page displays the ticket block – if it does, then a recent BB update messed up the Event Tickets block on your other page. If you put in the info from the other page, then you can just delete that one and fix the link (it’ll have added a “2” at the end). If you made up something simple, then you’ll need to copy/paste your info into a new page, adding in the tickets
4) Check that it works
5) If it works, re-enable the Beaver Builder plugins – DO NOT DO ANY WORK ON THAT PAGE IN BB JUST TO BE SAFE
6) Depending on who’s hosting your site, it might take up to an hour or more for the site to look good again with BB fully active (glaring in the general direction of a certain company I won’t name)
(Note, this probably works with plugins other than BB causing issues, but I haven’t tested that theory)
