When creating dolly paths, and playing said path, if you have anchor not set to world it will rotate the dolly path/camera completely of it's base.
Steps to get said effect:
  1. Create Dolly paths (I created mine to loop, so it was easier to test)
  2. Set camera anchor to default or local
  3. Start dolly sequence
  4. Rotate the player (turn left/right, as you spin around)
  5. Watch the camera/dolly path rotate off the path that was set up.
  6. Stop, and switch anchor to world
  7. Start dolly sequence and turn around again
  8. Dolly camera will stick with the path and not rotate around when the player rotates.
Video also shows what's happening: https://youtu.be/9ENoKDBI6fs