If you swim with the fish long enough they will crash and or FREEZE!!! The fish stop moving.
Swim with fishes. Sounds like a mob hit.
Lockwood have already acknowledged the issue with the blackjack table, so it should be fixed soon.
As for anything other issues you may notice, it's best to submit them in the Playstation Home Support section of the forums so the errors can be recognized by support team.
I don't know if this is a glitch or not: On my initial first-time play of Blackjack I was given the option to wager amounts in the thousands. However, after I returned** to the space a minute later, the highest I was given to wager on Blackjack changed from thousands to mere hundreds.
(**I had to leave the space because my view didn't change from the table view after exiting the game--similar to what others have previously mentioned.)
(FYI: If this happens to you, press "Select" and the option to "Return to Personal Space.")
Hopefully all these issues will be addressed and sorted out come next update.
I noticed when I go the the beach while on my aqua mount it lets me stay on my aqua mount just above the water line. It looks really cool like I am actually riding a Orca whale in the sea. I am willing to bet this is a bug that will be fixed but for now I am enjoying it.