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Changes between Initial Version and Version 1 of Ticket #16330, comment 31

-                      initial
+                      v1
 I arrived here after experiencing the same issue with + signs as well.  I can upload the file, WordPress creates images of sizes as expected, but none of them are actually visible on the site (though pulling them down lets me see them on my machine).
+Note that the problem, for me, only exists on subsites in my MultiSite network.  That is, if site id 1 uploads photo+1.jpg, and it goes to /wp-content/uploads/ and is accessed directly, the image is served with no issue.
+If I upload the same file to any other site, and thus it ends up in /wp-content/blogs.dir/ and is served via ms-files.php, the image is not served, and rather, I'm given a 404.
 I'd happily help test a patch, but am weary of spending time on a patch that's 2 years old now.