Is this not caused by the last node on the path. Liam had a similar issue that the first and last nodes unless clicked on can cause a strange bend.
Try clicking on the last nodes where the Dino is attacking and then run the scene again. Otherwise, is the model the correct orientation when attacking while not doing anything but simply animating.
Not sure what else to say without seeing anything more
Btw, your demo is also looking cool. Keep it up