Shadows seems to be weird

Does anyone have the experience that the shadows are not really in line with the aerial photo?

So, for a city in The Netherlands, the aerial orthophoto has been flown on November 23-24, 2020. Image with only the shadows that can be seen in the aerial image: 101297_01_aerialPhotoShadows.jpg

I’ve drawn blue lines in the screen dump that are actually the shadows being cast. And the yellow lines are drawn on the edge of the shadows in the aerial image. (101297_01_20201123-Shadows.jpg)

The buildings are modelled from the data that has been acquired from the data of November 23-24. But when I turn on the shadows, they seem to be off time-wise: more or less the situation of September 16, 2020…

In the image below you can see that the shadows almost match when I configure the shadow widget more than two months earlier. (101297_01_20200916-Shadows.jpg)

I don’t understand why this is the case. Maybe there is a plausible explanation for it? Or do we have an issue here?

Hopefully my story is clear and someone can help?

Hi all! Anyone an idea?