I noticed something similar happening to my suction vac's hose, right after the pool was resurfaced, where it didn't do that before. Took me a while of untangling to figure it out. The hose needs to be able to rotate freely where it connects to the vac head, or otherwise, while it spins and turns, the hose gets twisted up. All I had to do was take off the hose and clean off the grit that it had accumulated from the replaster job.
Maybe the Polaris' hose is similar in that regard?
I'm not sure if the Polaris hose's joints are lubricated or not, but try disassembling the sections and giving each surface a good cleaning (rag or brush?), and then reassemble. Make sure anything that's supposed to swivel and can do so freely. See if that solves it...