setcamfacingobjecttest.zip
When a camera host is set, set-camera-facing-object always asumes the host rotation is 0 on all axis, and it works as long as it remains as such. But as soon the host rotation is anything else than 0, set-camera-facing-object fails to face the object. It would still points at the object as if the host rotation were still 0.
This is also true for set-camera-facing.