I used Viewer before without issues, but recently it started crashing.
When I start it, screen goes black for 5 seconds and then I get back to apps list.
I uninstalled SketchUp Viewer from my Honor phone, and reinstalled it. Found out there was an update later on yesterday about a crashing issue with Android 8. It did in fact crash for my at one point, I will report that. But aside from my phone not supporting AR, it seems to be working ok.