I have Colorbox set up and also enabled the colorbox load and inline options. The library is in the module folder (not in a folder off of the root).
Outside of ckeditor content, colorbox works perfectly. It also works in Paragraphs image fields.
I cannot get it to work for any images entered within text areas using ckeditor, even when manually adding the "colorbox-inline" class to the images.
Best I've been able to achieve is getting a popup which looks as if it's trying to load an image.
It would mean a lot more content flexibility if I could have images throughout text that could pop up in a colorbox gallery rather than having them segregated to one area of the content page.
Am I just misunderstanding the function of the colorbox inline option?
I'm having the same issue with the D9 site which uses separate modules for colorbox_load and colorbox_inline.