Do you always run into this crash when placing a blueprint? Does it also happen if you place the blueprint in a new, empty world?
It runs into this crash when placing a blueprint once in a while and in particular with this one.
What it called my attention are two things:
1)- Yes, it crashed when I placed this blueprint in a new, normal, with plants world.
2)- Right after I almost finish my building, I got a blueprint and placed it in a flat, desert, no plants, empty world for polishing and I got to reduce the size (423KB) and it worked fine.
But, when I tried to place it in a new, normal, with plants world, and I tried to get a new blueprint, it increased the size considerably, started with mouse lag and it was gone. (Both worlds kept animals, dungeons, and caves).
Also, I recorded the blueprints without terrain, but, it seems that terrain matters.
@Red, I thank you for your fast response. I appreciate it.