It seems to bug out a bit when creating a new rod load out while on the water. It keeps showing the default rod loadout. I got mine to fix itself by going back to driving, then back to fishing. Also, I only put whole new rods together in the menu and just adjust them while on the water.
My problem is they disappear after turning the game off and comming back the next day except for the original first 3 rods..then I have to buy them again..I play with 8 rods..all the time.