Failures in UB when not passing some switches

[mmitche]

When not passing -cleanWhileBuilding (or possibly -ci/-prepareMachine), We're getting failures when building some repos (arcade). These tend to be of the 'analyzers are of different version than compiler loaded' variety. Further investigation showed that we we're getting installs of the P4 SDK (what is in the root global.json) in the initial VMR build, but repos were then re-installing older SDKs and using those.

[mmitche]

Need to verify that this is still an issue

[ViktorHofer]

This isn't an issue anymore.