I have issue with custom fields disappear in the back-end. Using metabox create CPTs, custom fields. I'm not sure if it is related to my install slim seo, slim seo schema plugin. But it did happens only after I installed these two plugins. The thing is I disabled these two, the custom fields still missing.
I have many CPTs and custom fields, but very strange, only the custom fields of my product CPT disappear. The other seems just fine.
And in the front end, my product single page seems working fine, since in the product single page, I can see all the data from the fields be rendered correctly, so they should still be in the database. It's just it cannot be seen and edited in the back-end.
My max_input_vars has been set to 45000 which I believe is high enough.
The metabox AIO version is 2.30, I tried to update to the latest version, its still not working.
I tried to deactivate all other plugins except AIO, its not working.
I tried to deactivate bricks builder and install the 2025 theme, not working as well.
The custom fields are enabled in the backend.
I've searched the forums and found several similar issues, yet I did not see if they were solved or not finally.
Anyone can help me please? It is really urgent.
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