A disturbing trend has developed in my White Cheese Slopes..

[volumex]

I think certain ranges were moved from one factory to another, Lego have various places that manufacture small parts, it could be the change in plastic processes. I advice to maybe take one do a stress test till it breaks and give the report to Lego.
The material used is relatively strong, could be a certain compound thats weaked the structure in spots, best viewed with some serious equipment. Good luck hope you come right.

[Mister Ed]

I just noticed that my little Target dog set from last Christmas (the one that served as a gift card) has not only cheese slopes cracking, but a TON of the white elements cracking. Pretty much EVERY small piece in the set has cracks in it, even, sadly, the 1x1 white brick with the Target symbol printed on it, which I probably couldn't get a replacement for if I tried.

[vynsane]

I was upgrading the sorting of my collection and noticed a few of my 1x1 white cheese has the same cracks, maybe two or three.

[Draykov]

Well...just to offer a counter-experience, I've yet to notice this in any of mine...though my 1x1 slopes tend to be in their storage drawer or on the original set they came with which was likely built only once.

[Jabba the Taff]

Are the new 1x2 plate with cheese slope (as found in the new Droid Escape) a response to this? An unspoken admittance that there was a problem?