urgent : difference V9 / V11 in combo chart ?

[#1]

Hi

I have a gantt chart which work perfectly with the v11 version.

Unfortunately I have to develop for my client wich ows a v9 version.

My combo chart has bars and symbols.

When I create a simple chart like this from scratch in V9 it is ok.

My problem is that my chart is stacked, and has a static min.

If a desactivate the static scale, it is OK

If I desactivate the scattered option it is OK

But with the two it dosnt work !!

Can someone help me out ?

See attached