I can't release fish in multiplayer

We're aware of this problem, and we're currently looking into a solution.

In the meanwhile, here are possible workaround you can use when you encounter this issue:

1. Make sure the fish is well above the water's surface before claiming it.
2. You can recover from this state by pressing 'A' or 'X' once more - you do not need to change the scene or restart the game if this happens.