Sir, It Appears You Have Dealt Me Four Cards

I had a somewhat interesting if not financially significant occurrence today. After a whale left a table (which in this case was of the $600NL 50bb variety), I quickly performed a player search on his screen name and found he had sat seconds ago at a 6-max $600 50bb table. After I sat in and was dealt into a hand however, I noticed that I was dealt four cards, as it wasn't 6-max NLH but instead PLO. My PLO game isn't awful, but with a few of what I can only assume were regulars joining I elected to only play a single orbit. In the only hand of interest, the fish opened and was called by myself and what I can only assume was a regular in the blinds. Given the preflop and flop action I'm 99% confident my turned set is the nuts, and I definitely think I should have full potted the turn. Fortunately for me the presumed regular bricked his draw, though unfortunately for me he didn't turn it into a bluff when checked to on the river.

Anyway, here's the hand:
PokerStars Pot-Limit Omaha, $6.00 BB (4 handed)
UTG ($300)
Button ($399.50)
Hero (SB) ($300)
BB ($300)

Preflop: Hero is SB with 8♣, A♦, J♥, 8♦
1 fold, Button bets $21, Hero calls $18, BB calls $15

Flop: ($63) A♣, 4♠, 9♠ (3 players)
Hero checks, BB checks, Button checks

Turn: ($63) 8♥ (3 players)
Hero bets $48, BB calls $48, 1 fold

River: ($159) 3♦ (2 players)
Hero checks, BB checks

Total pot: $159 | Rake: $2

Results:
Hero had 8♣, A♦, J♥, 8♦ (three of a kind, eights).
BB didn't show
Outcome: $159 returned to Hero

I haven't put in much volume at all today, which is definite fail on my part. Sitting at 2.9k hands played on a Saturday doesn't happen often. Perhaps I'll play a late night session shortly, though it's not the end of the world if I slack off as I only need another ~17k VPPs or so to hit my 600k VPP milestone which will mark the end of my grinding year on Stars.