I animated a cube using a symmetry object to try making a closing door. video of problem here. The arnold IPR is showing an animation totally different from what I made and I dont know why. I'm using cinema 4d r23 with c4dtoA 3.1.1
I can reproduce it, must be a bug somewhere. Thanks for reporting. Could you please confirm that it renders properly if you restart the IPR? And rendering to the Picture Viewer is also fine?
That's odd, restart works in my simple test scene. Would it be possible to send me your scene to take a look?
When in doubt just add a render tag. Ada render Tag to all the layers until you find the layer that actually needs one. Most likely you just need to add a render tag or up your subdivisions for rendering that layer