404 error page after updating CPTUI to latest version

Biggest thing with updating from that old of a version is making sure your rewrite rules are refreshed afterwards. the 1.0.0 had a huge behind the scenes rewrite go on, including how the settings were saved in the database.

If at all possible as well, given the amount of version difference, I would recommend trying the update on a local or development copy of the website before doing so on production, just to make sure things go as smoothly as possible, and allow for figuring out what needs to be done in spots where it’s not going smoothly.

Hi Michael,
Thank you for your response. So may I know how can I know that the rules are refreshed after I update the plugin to the latest version? May I know where in the settings can I check? Thank you in advanced!
KC

There’s no visual setting for permalink/rewrite rules being flushed in the WP admin. Closest would be viewing the option row in the database and trying to compare the value before and after.

Easiest way to trigger a rewrite flush is to just visit the permalinks settings page and hit save again, without touching the settings. After that, try and re-visit the CPT posts. If you’re no longer getting 404 errors, winning! If there still are issues, then something else may be up with things and further debugging would be needed.

Thank you, Michael!

It works after I save the permalinks settings again!

Glad that worked out, and thanks for getting the plugin updated with such a large jump.

I had the same problem and this did the trick. Thanks!