timpt

Thanks for the help but after quite a bit of debugging I managed to track it down. It is indeed the upload_path variable in the options table.

upload_path was “wp-content/blogs.dir/3/files”. I changed it to “wp-content/blogs.dir/17/files” and it all works fine now.

My question is, all new files uploaded can still be accessible using “blogs.dir/3/files/…” (as wells as its ‘proper’ URL of “blogs.dir/10/files…”. I’m just wondering where WordPress/Multisite stores this mapping of 3 to 10.