Since 1.12, I've been regularly fishing from sun up to sun down in game. In that time I've gone through at least 3 fishing poles, catching around 6 stacks of cod and/or salmon, 5 enchanted bows, 6 enchantment books, 7 name tags, 6 saddles, 3 lily pads, and 3 nautilus shells, and numerous "junk" items. But in all that time (at least 20 in game days of fishing) I've yet to catch a single enchanted fishing rod.
MCPE-51499
Unable to catch enchanted fishing rods.
Resolved
Cannot Reproduce
0
Okay, so I spent several in game days fishing yesterday, and I finally received an enchanted fishing rod. Total of 5 nautilus shells, 8 lily pads, 9 bows, 7 saddles, 12 name tags, 11 enchanted books, and 9 stacks of cod, salmon, tropical, or puffer fish. So it seems like this could all be bad RNG, but I wouldn't expect it to take over 700 casts to land an enchanted fishing pole.