Sort order applied to columns on Straight Table Chart automatically changes

[#1]

Hi,

I have a qlikview app which has several charts with Quarter and Month (these are straight tables with horizontal layout).

I set up the charts to be sorted by Month Year and then Quarter:

However, sometimes when I make a selection, or move to a different page and then come back to a dashboard, the following happens:

Is there any way to prevent this from occuring?  Am I doing something strange?

Many thanks,

Rhiannon

[sunny_talwar]

Would you be able to share a sample to see the issue?