HTTP 403 error when trying to change a media credit

Replies: 0

Hello,
on one of my client’s sites I have an error using the plugin. When I try to change the media credit of an image the changes are not saved. I looked in the dev console and saw a 403 error on the following endpoint using a PUT request: wp-json/v2/media/53097

However, I checked the /wp-json/wp/v2/media using a GET request and I receive a 200 response with an empty array as answer. So, the endpoint seems to be available in general. But should the array be empty?

I use the Media Credit plugin in version 4.1.1 (the latest one). When I rollback the plugin to version 3.2.0 the bug doesn’t exist anymore.

Can you help me with this and give any advice why the 403 error appears?

Thanks and best regards
Nina