Bug in IOS6 Numbers Pie-chart?

IOS6 Numbers Mavens,

Is there a bug in the Pie-chart function of IOS6 Numbers?

For example:

On an iPhone or iPad...

Enter in a column of five cells:

1

2

3

4

5

Then select the range and touch "Create Chart." On my iPhone & iPad, a pie-chart is created which is fully filled in and labelled 100%; this result is not expected.

HOWEVER, in Numbers on my MacBook Air, the same data used as the source for a Pie-chart (exchanging the file via iCloud) creates a pie-chart as expected (e.g., five slices, each slice larger than the other until the circle returns to 1).

Is there a bug in IOS6 Numbers? Or, is there a step I've missed (and...I've read the online manual several times today trying to figure this out).

Thanks in advance for any assistance.

Best regards,

Plane Wryter