commsec apparant varience in prices displayed

Interesting variant when looking at Commsec, following market prices,


SIH 0.250 0.265 0.250 +0.015 6.38 0.230 0.260 0.225 3,651,806 111 862,439

Then undermentioned is when checking the ' Course of Sales '

Bid offer last Volume
$0.245 $0.27 $0.25 3,651,806

Have never noticed this type of discrepency before, probably not a major issue, just curious if anyone aware reason behind the varience in pricing ?