Looks like we are all being played for beta testers - again - with this new release. Over the course of just a few hours I've run in to so many problems that our office will be going back to 2017. I don't think, for the price we are paying for this software, that we should have to serve as beta testers. This product is not ready for public release. Only as recently as several months ago has 2017 had most of its bugs resolved. I suppose it will take another 9 months for this one as well. Save yourselves and don't bother with it. There are great ideas in 2018 that just aren't ready for public release yet.
Some problems we've had -
Terrain models have problems updating and crash every machine. They had to be re-built from scratch to work in 2018
Roof styles randomly showing transparent when in 2017 they are solid
Roof style components not clipping properly to interior wall surfaces
Multi-pane mode crashes
this is just in 24 hours of use.