Not game breaking but it is kind of odd to experience this. Two bugs, minor in my opinion thus merged into one post.
A couple times I noticed my raft is being bumped by sharks while there is no shark really close in visual range as I am in shallow waters. The sound does play that there is a shark hunting me. It seems to happen with the Hammerhead and Blacktip Reef sharks.
After skinning a normal “little” crab. The dead body stays a long time in comparison to the rest of what I killed so far.