Put the summary of the bug you're having here

What I expected to happen was...:
The thing on the fish line would float upwards

What actually happened was...:
It just did not float and I caught a fish!

Steps to Reproduce:
1. Go into the ocean and press f5 once
2. Start the swimming animation
3. Have a fishing rod on you  and start holding in the left click button

4. After a bit, you should see the thing on the fishing line not moving.

5. Stop fishing. If you stopped when the fishing line was out you can now fish underwater.

Video here for proof: https://youtu.be/6K9ZrhAygNc