I upgraded our development site to 3.6.2+ from 3.3.4 the other day and noticed that file links from the WYSIWYG editor are no longer using the ?file= parameter. Yet files in folder activity types are working as intended. If I add ?file= back in to the requested URL the image loads correctly. My investigation lead me to the slasharguments setting, which we've always had disabled. The warning that it will be required in the future makes me wonder if that time has come? If not then I'm not sure why our file URLs are not coming out right.
Example image URLs
1 results in a 404 error) https://domain/pluginfile.php/633/course/section/33/logo%20side.png
2 loads the image correctly) https://domain/pluginfile.php?file=%2F633%2Fcourse%2Foverviewfiles%2Flogo%20side.png
I'm currently working with our hosting company to enable the necessary environment changes to have slasharguments work correctly. Unfortunately that's not going to plan either, but that's for another thread.
Any ideas or suggestions are much appreciated.