After installing 2015 SP3.0, I am finding that surface operation features and solid sweep features are failing in my models once I open them and do a rebuild. The features worked fine prior to SP3.0. I get error messages stating that the feature cannot be created due to geometry conditions and crap like that or now it says the geometry is self intersecting and the feature cannot created. I already created it once and had no problems and a lot of features were built based on that failing feature which makes my model a useless piece of puddy now. What the heck changed? Now I have hours of rebuilding to do because of this. Is anyone else seeing this behaviour besides me and the other designer I work with?