Hello I added another locale, went to the content type builder, created a new content type and clicked ‘enable localization for this content types’. An error occured with “debug POST /content-type-builder/content-types (28 ms) 400”.
I have directy migrated from 3.5.3 to 3.6.0 and installed the i18n plugin before accessing the admin panel.
Is your project code somewhere public that I can view and try to reproduce? (GitHub) if it’s private and you are willing to add me to the repo my GitHub username is derrickmehaffy.
Or if you can compress it and PM me a link to it that would be great.
It appears you have extended the content-manager plugin controllers and I couldn’t even start the application as there is a syntax error in api/product-category/models/product-category.js on line 17/24/30 (the ?).
But the primary problem is in: extensions/content-type-builder/controllers/ContentTypes.js you will need to compare your version to ours on GitHub (extensions are mentioned in our update guide here: Update Strapi version - Strapi Developer Documentation )