Placing lots from the gallery freezes game/endless loading

I noticed after updating to the latest patch (my update included the last 2 patches, 27th of may and the june patch) it seems like 64x64 builds are crashing / endlessly loading even more often now. 

I tested on a fresh save without mods on the Recreation Center lot in San Sequoia, by trying to place several 64x64 residential lots after another from the gallery, and it crashes already on the third. When I do the same in my own save where there is already a more complex build in this location, it crashes already on the first lot placement. Usually it never crashed on the first time for me, this is only happening since I updated. There were some performance changes made in the previous patch (and I hadn't updated since 2 patches, so I only got these changes now), maybe those made it worse?

It's now impossible for me to place some lots at all.

I'm placing always with MOO on. (With MOO off the same builds didn't crash). Also clarifying, these lots are not always crashing, I was able to sometimes place them, so it's not the other issue that is getting tracked, where a very certain lot is crashing.

Since I have a state in my save file that always crashes with random 64x64 lots, let me know if you'd like me to share this save, to have a reproducable state for debugging?