In my local opensim, I've been successfully using Firestorm v3.3.0.24482, with the mesh uploading and physics working nicely.
Today, when I signed up for Kitely, I stupidly decided to upgrade to the latest version and discovered that NOW, I can't upload mesh at all. Then, I uninstalled the new version, including the folders in AppData/Local and AppData/LocalRoaming and then reinstalled the v3.3.0 version.
Much to my horror, I am finding that uploading mesh with the older version, whether on my local opensim, or on kitely, doesn't work!!

Absolutely ANY advice, tips, anything would be most, truly most appreciated.