Every lot seems to have similar problems, although not all the props or textures are missing/white/wierd colors. I know for certain I have all the dependencies and such.
(https://www.sc4devotion.com/forums/proxy.php?request=http%3A%2F%2Fi144.photobucket.com%2Falbums%2Fr190%2Ftrebuchet77%2FUntitled.jpg&hash=30f7ab37062614acc040cbb5408ad92c04802cde)
In game, everything is fine with every lot in question. Any ideas?
I've been getting this problem lately, also.
LotEditor and SC4 differs in rendering stuffs
From your pic, it looks like only the trees are affected, which FSHs have alpha channel.
I don't remember for sure, but I think LotEditor can be turn into software or hardware mode like in SC4, you may try to switch to see if it changes something
Also, check if you have installed a new GPU card or GPU driver
Didn't get any new drivers or anything, it just started happening. Also, I couldn't find the hardware/software option anywhere.