Billmel on "[Plugin: Participants Database] Can't save a record from the front end with the latest version"

With the update, I can now go to the edit_record page in the front end, and make changes to the record. However, when I save those changes, I'm taken to a "404" error page, which unfortunately doesn't tell me what page it was trying to find. I was using a custom template from 1.6, but I changed the page to just a [pdf_record], and it still doesn't save correctly.

Mahalo

https://wordpress.org/plugins/participants-database/

Did you try re-saving your permalinks? Are you using a page cache?

No page cache. I did try re-saving the permalinks, and I just tried updating to the latest version of PDB, after disabling ALL other plugins. No difference; still get taken to the 404 error page after saving an edited record from the front end. Exactly same code worked in pre-1.7 PDB.