Solar access simulation : sun turns in the wrong direction

Hello,

Using sldwrks since 20 years, I just discovered that the sun itself can be simulated.

But following the help, it did absolutely not simulate things correctly.

I did configure compass and location correctly.

The sun wake up at EST, ok, but then, go to the north instead of the south.

Also, on the configuration tab, there is a info field with computed solar elevation/azimuth. During the day, sun elevation is negative. Quite strange.

I didn't found any useful help on the web. All topics refers to the same basic help page of sldwrks.

 

Any help appreciated

Thanks !