BEx report showing double the values

Hello All,

     I have a BEx report which was built on Infocube. This report is in use for long time and we never get any issue. Today we got the issue that BEx report result doubled order quantity (100). I have checked it in Cube, cube have correct value (50). This report is on 3.x version. data load is every day delete and Full load.Please help me in finding the root cause for this.

Thanks & Regards

Bhanu K