About the Viewer category

If you’re having a problem with either SketchUp Viewer, Mobile Viewer or HoloLens Viewer or wish to report a bug, do so in this category.

V5 Not crashing any more on iOS 10.3.3.

Tries to load model.
Even their own logo included in the install!

But only a blank screen.

Just make v4 available already until you get v5 sorted.
I know its not that hard.
I’d be embarrassed if I were you.
I’m embarrassed for you.