Sort code works in column H but not when column is (SOLVED)

I have two columns with auto mileage numbers. Each has a different set of numbers. We have not been sorting on column G. I've been sorting column H highest mileage to lowest.
This works perfectly, for example:

Column H after sort

Mileage
250,000
200,000
185,000
101,000

But if I change the letter "h" to "g" in the code the sort puts a particular number in the top cell, the same number every time. The rest of the numbers under it appear to have sorted properly.

Column G after sort

Mileage
101,000
250,000
200,000
185,000

Code that works:

Selection.Sort Key1:=Range("h5"), Order1:=xlDescending, Header:=xlGuess, _
        OrderCustom:=1, MatchCase:=False, Orientation:=xlTopToBottom, _
        DataOption1:=xlSortTextAsNumbers

Code that doesn't work:

Selection.Sort Key1:=Range("g5"), Order1:=xlDescending, Header:=xlGuess, _
        OrderCustom:=1, MatchCase:=False, Orientation:=xlTopToBottom, _
        DataOption1:=xlSortTextAsNumbers

I've tried changing the formatting and checked to make sure the number that keeps coming up at the top doesn't have a single quote , but I am really stumped. I'd appreciate any help you can give me. I need to wrap this project up as soon as I can. Thanks!

Re: Sort code works in column H but not when column is changed to G (SOLVED)

Sorry all. I went back and re-keyed the number in column G I was having trouble with and now it works fine.