i guess i didnt see this one, but it confused the bleep out of me.

if i have A2, with no protection, and the board puts up the A. obv, i got my Lo busted off. but, if a fourth comes under 8, my A2 is live again? because i can drop the A off the board and use my A2 to make a new nut Lo?

heres the hand.

i'm guessing i should have recognized that, but i didnt know, and bet the river. feel free to give advice on the rest of the hand, too.

Poker Stars
Pot Limit Omaha Ring game
Blinds: $0.01/$0.02
5 players
Converter

Pre-flop: (5 players) Hero is Button with K K 2 A
UTG calls, CO folds, Hero raises to $0.06, SB folds, BB calls, UTG calls.

Flop: 4 8 Q ($0.19, 3 players)
BB checks, UTG checks, Hero bets $0.1, BB folds, UTG calls.

Turn: A ($0.39, 2 players)
UTG checks, Hero checks.

River: 6 ($0.39, 2 players)
UTG checks, Hero checks.

Results:
Final pot: $0.39