There appears to be a “new” graphics issue with fishing poles. I don’t know that I have done much “worm golf” or fishing since 1.7 so my guess is that 1.7 broke it. The worm disappears from view on long casts. This really wrecks the concept of worm golf, because you have to see where the worm landed and mark that point for your next stroke/cast.
Here’s a video to explain what I mean. It appears again if you zoom out, but’s it’s very hard to discern exactly where the worm is like that.