Wiper blades clicking

[Saikolemon]

Hi everyone! Recently, I have experienced a clicking noise coming from the front wipers. They click once when they start their cycle and click again when they end at the bottom. Is this normal?

Have been looking around on the internet and it could be the wiper relay? It only happens on the intermittent setting and when you engage the one swipe function. Basically, one notch above and below the off position. Regular and high settings seem to be fine.

Have never noticed this at all since I got the car and it only seems to have started recently.

Any advice out there? Is this warranty claimable?
Sam