The new 9.0 version is EXTREEMLY UNSTABLE. If you copy and paste something from the previous version the 3D RENDERING stop's working entirely and everything stops working please fix this.
Version 0.9.0 is not backward compatible. You must correctly re-set the parameters of all actions and expressions related to 3D.
If it is difficult, please download version 0.8.5 from this page and import again.
