Ever seen this?

[pokeherguy]

10 video poker machines in a row, all are multi play $1/$2/$5 denomination. One machine is paying out very well I saw A's w/kicker at the $2 level, quad 2's & quad 4's w/kicker at $2, royal flush at $2, quad A's at $5 and quad kings at $5. After getting paying on the quad kings the machine would only allow play at the $1 denomination. All the other vp machines in the bank were still $1, $2 & $5 but this one. Seemed kinda odd because I had never seen a machine change denominations before.
 
The guy was also asking me if I had ever put a $100 in a machine and had it pause for a while showing a message that it was checking memory.