I can also confirm uninstalling KB4019472 returns my SU to normal operation, and I believe I can keep my PC in this state until I decide to restart Win 10 Updates again (hopefully days/weeks away?).
I am using Samsung Notebook Win 10, Version 1607 Build 14393.0
With Intel HD 4000 graphics Driver: 17-8-2015 Version:10.18.10.4276
Sketchup: Version 2017 (latest)
Control Panel->Administrative Tools->Services->Windows Update
I changed setting to "Disabled" and for 3 days now Windows has NOT updated and SU is running as normal with instant Select Tool
The following article explains my procedure the consequences and obligation I now have.
Hope this helps someone else.
It seems to me ONLY Microsoft can fix this problem, advised in detail by SU Engineers, by issuing a later version Update to correct whatever happened inside KB4019472.
I don't want to have these updates turned off for very long due to other critical security risks!