Measure HYTD - negative figures

Hi everyone,

We implemented the measure HYTD by adding the members in the TIME dimension with the properties as the others members.

The level is HALFYEAR.

After processing, we can see in BPC excel the measure HYTD, it seems ok.

Now if we use it on all month on a year ...

On periodic ... we can see the figures (aggregation on all other dimensions

On QTD, ... we can see january in january, jan + feb in feb, jan + feb + mar in march, april in april ... so it is correct

On YTD ... we see each month the aggregation of the months before

And on HYTD ... the system uses the same method than for quarter (but on 6 months of course) ... but with negative numbers on the screen !

Did already someone had this issue ?

Thank you very much