I have a Tevo Flash Dual Z TouchBL standard. The printer stopped extruding after it did a filament retraction to move printing from one place to another, the wheel spins back to retract and then seems to get stuck, but the print process keeps on going. I paused the print and then restart it and it extrudes again and then stops on the next retraction. I tried printing without retraction and it prints the object. I tried it with the latest versions of Repetier and Cura. I tried it with a 6 mm retraction and retraction speed of 25mm/s, PLA at 200 oC and 180 oC .How do I make it print with retraction settings?