Is there any cause to why the turn signal and hazard sometimes "freeze"

Try replacing the signal stalk.

If you need a place to get parts. Check out this site. There are even coupons that are offered as well.
https://www.beelineparts.com/

Start with cheap, easy and most likely FIRST.......


https://www.rockauto.com/en/moreinfo...=1356780&jsn=8

Your prices are too high. About double. Between junkyards and cheap internet sites, competition is crazy.

I know our prices are high, but we actually sell our parts from a Nissan dealership so these parts are Brand New stock OEM parts. Compared to other dealerships, we competitively price with them. As we are a Nissan, we can only do so much with our prices. If you were to get a part from us, you are guaranteed the right part if ordered correctly and that it will be in fact Genuine new Nissan OEM part, instead of aftermarket or imitation.

My guess would be the flasher relay that's under the dash.