These are causing an exception (now late 2021) on startup and Loading reports problems. Pity, because they look good.

~~JR~~ just get the garbage disabler mod. Simple. They work fine for me

is this still working? or does it have any bug?

Since the 1.6 update, these assets produce an unlimited amount of trash causing all your trash trucks to goto these and fills your landfills super fast. Avoid these for now...

Only 8x8 items are broken (too many vertices). You can safely use 1x1 and 2x2 in Snowfall, they work perfectly.

Snowfall has broken your beautiful cemetery blocks. - Too many vertices. Will you be updating this?

I was always looking for something like this because I wasn't satisfied how original cemeteries look in-game.
Maybe you could make few functionable ploppable cemeteries like these props? I am still forced to plop other cemeteries to have working city.

Well Done @JRSly - These assets while a little depressing/morbid are much needed in any city to add a bit more realism and character. I hope you find a way to implement some of the other ideas you mentioned above.