Regarding Gulp.. does it matter if the CLI and Local Version for does not match? I ask because I recently configured the TBA patch for Elbrus and deploy. After the deploy, the My Account pages would not load. A co-worker deployed the same code and the My Account loaded. The only difference between their setup and mine is they had 600+ folders in node_modules, where I had ~197 folders. Also, their CLI version is 3.9.0 where mine is CLI 3.9.0. CLI version: 2.3.0 Local version: 3.9.0

After applying the patch, did you try removing the node_modules folder and rerunning npm install?

yes