Hello! I have worked a bit with animations and mixamo before, but this is the first time I have had this particular problem and I can not crack it. I have tried using a custom model, a mixamo model, and the unity guy and the results are the same. Onto the problem: I have a model (in this case, Unity Guy will be a good example) that is rigged proper and such, as well as a Mixamo animation (in this case a simple running animation). (Full album here: https://imgur.com/gallery/N8qcr ) My Mixamo animation rig: (https://i.imgur.com/kulea6k.png) My characters rig: (https://imgur.com/rrdD0gM) *Note: The unity guy rig, as well as a Mixamo rigged character produces the same results The rigs look okay, everything seems to match up, mooooving on.... Let's look at a walking animation: Unity Guy Walking: (https://imgur.com/kcPhdgx) Barbarian Walking: (https://imgur.com/xX2ZOAD) Note: I know he is huge, I am not sure why, another problem for another day it seems Walking looks good, lets try to run! Unity Guy Running: (https://imgur.com/71t4TXR) Barbarian Running: (https://imgur.com/e2rhHKn) Say what now? That left foot looks great! I am not sure what is happening, why it is happening ... It happens with every animation (I did a lot of tweaking to get the walk to look halfway decent, changed some bones ... but it doesnt help when every other animation is broken and I can't change the rig per animation). Right foot is fine, left foot hates the world. And when it runs it just kind of ragdolls around the "ankle" and looks terrible. I am at a loss with this one, and I really hope someone else has seen/encountered this and knows a way I might be able to fix it! The animations I am using can be downloaded here (walk): https://www.mixamo.com/#/?page=1&query=male+brutal+walk and here (run): https://www.mixamo.com/#/?page=1&query=running+forward+quickly if you wanted to check for yourself.