I have a scene where I have a mixamo character running then jumping off a building. Instead of the mixamo character jumping and hitting the ground I would like for it to actually continue falling down without hitting the ground. For some reason I managed to get it working before by moving the building up higher away from the floor axis and the character kept falling down. Now since I restarted my animation over its not working anymore. Any idea how I could get it working. Thanks.
"Normally" you can move the whole body with the hips bone of mixamos rigs.
So select the hip bone (delete all keyframes of z in that falling area), go to the frame where it should start falling, press I and move your timeline where the end of falling should be and move the hip bone downwards as much as you like: