I can confirm in my game this problem is fixed! Thank you, thank you so much to the team for getting this taken care of before the pack release. I'm so happy to have my trees looking like they should again!
I also have this issue and AMD.
@GypsyRozLyn Welcome to the club. Maybe one day we'll be officially acknowledged.
I just did a brief run through of the trees from Build Mode in my game and the following are the only ones with correct shadows:
Dancing Maples: I think these are from Get to Work, Lilacs and Lanterns from Movie Hangout, and the tree that lights up from the free Holiday pack.
Also there's two large spruce trees in Forgotten Hollow from Vampires that seem to be fine. Those spruce trees are trees that are world objects that I've unlocked in Build/Buy. All of the other trees show winter shadows regardless of the season.
I didn't take any screenshots, since it didn't seem necessary as there's already pictures of the problem posted here, but I can take some if needed.
For reference, here's screenshot I took on April 20th. You can clearly see that the shadows being cast (on the right and left sides of the frame) have leaves. I haven't changed any settings since then or altered my game in any way. In fact, I went on a 2 month hiatus shortly after this was taken and didn't play the game at all. The only thing that changed was the updates.
On my AMD R7 250.
