progressiodev

Posting some more feedback here after more troubleshooting. This issue looks to be related to Oxygen specifically as the error occurs on the register_post_type hook, and is not an actual problem with CPT UI.

I removed CPT UI and registered all CPT’s and Taxonomies manually with PHP and the problem persists.

Through process of elimination, I found the 500 error was only being throw on the registration of one specific post type. I replicated the exact registration settings to register a new post type and the templates loaded successfully, so the issue is also not related with the actual registration parameters either.

I tweaked WP’s load.php to provide the AJAX error in the console, but it was unfortunately it was just an empty string (https://prnt.sc/1js4klx). Another dead end.

This is were I have landed to date. This specific post type does have ~20K posts on the site, so perhaps this is a memory/loading timeout issue. Hope this helps anyone out there in their troubleshooting!

Thanks @tw2113 – Much appreciated, thanks for the follow up.

@cytkevin – Did you happen to record your solution here by chance, or the response from the Oxygen team if you reached out to them?

Hi guys. I saw this marked as resolved but don’t actually see the solution posted. I am having the same issue at the moment. Oxygen loads fine in pages, posts, re-usable parts, but throw’s a 500 when trying to edit a template. Error log is completely clean, so I’m at a loss here.

I went ahead and disabled CPT UI and just like that the template editor loads fine. Obviously CPT UI is a critical utility plugin that I’d rather not have to switch on/off every time a template needs to be edited.

Could you please kindly point me in the direction of the solve you came across?

Thanks!

I’m seeing this issue on a lot of sites, both those I manage for clients and others. No changes on any of the sites from our side but all favicons changed to the WP logo.

After updating to our own favicons, it also still switches back and forth between the WP default logo and the new updated custom icon on Admin.