In flight disassembly and crash of large 3D printed Model!

This is a titan Dynamics 3D printed model. A beautiful design that due to my own inexperience in building broke apart in flight. Very discouraging because I loved this model and put a lot of time in it. In analyzing what went wrong It seems that the starboard motor seized up causing an uncontrolled spin. Due to my inexperience I did not realize that I could have backed off the throttle and glided in. Additionally I observed that the stress of the uncontrolled spin cause the wing to break apart in flight. In retrospect I may have messes up the print and had weakened structural integrity. Nonetheless I will rebuild this model someday but its back to the drawing board with repairable foams for now...