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DesignBuilder IDF rotation error

I created my model in DesignBuilder and exported the IDF at 0 degree orientation. Now I have python script which would run the IDF with the help of EP to generate TM59 Overheating Criteria A and Criteria B results in 4 different orientations i.e 0°, 90°, 180° & 270°. The problem is, 0° gives exactly the same results as DB but 90°, 180° & 270° shows different values. I want all the 4 orientation to give same results as DB. I assume that DB and EP rotates the model in different fashion. What could be a solution to this?