i’m in tears… this works, i’ve tried everything even using old blender versions but they had other broken functionalities, spent over 5 hours trying to find the cure, but this thing works, can’t thank you enough 
I’m happy that the extra root bone and the scaling stuff are fixed , but now after importing the animation into the engine , the models don’t move even when root motion is not there . The animations root bone remains static throughout even though it translates on blender . Is there anything i missed to cause this issue ?
I’m using blender 2.78
In case anyone finds this post while looking for the root bone fix for Blender 2.78:
Prevent Blender FBX Exporter adding extra root bone
Hi Kris i’ve booked marked your page so that i can pass it on when required
This also fixes issues with APEX. You can still only have vertices affected by 4 bones at the same time but you can have lots of bones.
Thanks to all who help making the blender to ue4 workflow bearable 
New problem I’m having, this is from blender 2.78a to UE4.14.0
I’ve modified script and it caused this:
I’ve even tried the script that was already “fixed” for me:
I’ve also tried in 2.77 and still getting this same issue (also tried importing to UE4.13.1 and the error is the same)
help?
Should I use your ue4 tools or this script with the fix on your blog? Also when did you guys switch from Ogre3D/IDTech4 (I can’t remember the original exactly) to UE4, any plans on supporting Linux?
I get this now with UE4 Tools, krisreadbeards fix and your blender io_scenen_fbx fixed exporter. http://imgur.com/a/o7uZZ
Hi guy’s sorry to necro the thread but i recently switch to Blender and i am having a hard time knowing what work versus what doesn’t work! I want to buy mocap animation pack from mocap online and they provide FBX package and UE4 package so if i want to be able to modify these animations in Blender let’s say for example to hold a custom weapon then which package should i chose the FBX or the UE4 package?
I know that their UE4 come with some handy blueprint to handle and tweak animations so if i take FBX i wont get these but on the other hand if i take the UE4 then i cannot export it as fbx to blender since they are not working i know since i tried their free testing package.
I am afraid i will be force to get Maya LT for this to work without too much trouble!