This is my first printing wit the ender 3. I made an obj file in blender, imported it to cura, sliced it, the preview worked perfect, exported it to the flash drive, bed leveled the printer, inserted the filament, choose file and then started printing. I left my window open for ventilation (kinda windy today) and left the room. Came back to this. (the model had subsurf and boolean modifier applied). The temperatures were 200 celsius for the nosle and 50 for the bed, didnt change any settings in cura. What went wrong?