Please describe the problem:
For two columns of data:

Red     65
Yellow  10
Green   25

Create a bar chart (Plot > Bar > Adjacent Bars) of the second column.  Within the single series, add three points and give each a different colour as per the first column.

The first bar is displayed in red, the other two colour values are ignored.

Steps to reproduce:
As above

Actual results:
As above

Expected results:
The second bar should be yellow, and the third green.

Does this happen every time?
Yes

Other information:
I have an example spreadsheet which demonstrates this problem.