apparently some people didn't notice the link before, but in divisor's absence the official place is here on github:
it's unclear where science drummer and Tommys64 are the same person or not, but based on reading comments i am going to assume this is not the case, as far as i can tell science drummer found the update, but did not actually do any of the programming.
as far as i understand the way github works is issues must be reported to the main repository and not a fork, either that or issues have not been setup to be accepted, i've asked which is the correct place to report issues but for now the main repository should work just fine.
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also try running the mod by itself with just FML (minecraft forge) and nothing else and see if you still have issues first.
THE MINECRAFT FORUMS EDITOR IS COMPLETE AND TOTAL GARBAGE, THIS FOLLOWING PARAGRAPH IS A QUOTE.
Now, that said and with massive thanks to ScienceDrummer for the update/port (I cannot emphasize that enough), there are some bugs present that are inherent in SmartMoving. For instance, if I turn around in third person view, my Thaumcraft Goggles of Revealing are suddenly on the back of my head, and my Optifine cloak is hanging down my chest like a bib. They don't move with me when I swim, fly or crawl, either, and if I go into third-person mode when I'm within sight of armor on a Bibliocraft armor stand (I haven't tested it with vanilla armor stands yet), the armor on the stand spins around like a dervish.
THE MINECRAFT FORUMS EDITOR IS COMPLETE AND TOTAL GARBAGE, THE PRECEDING PARAGRAPH WAS A QUOTE.
this is expected behavior and nothing out of the ordinary, from what i understand the update has made minimal changes only to port the mod to the current minecraft version for compatibility, from what i can tell there are absolutely zero new features or changes to expected behavior.
this is a feature request, you can make it on github to the main repository link provided above as an issue with the selection of "feature request".
SORRY FOR SO MANY EDITS, THIS POST IS NOW FINAL, THIS FORUMS SOFTWARE IS SERIOUSLY THE WORST PIECE OF SOFTWARE I'VE EVER SEEN IN MY ENTIRE LIFE.