Hi Gregory,
Is the path ‘D:\Work\Engine\Binaries\ThirdParty\USD\UsdResources\Win64\plugins\plugInfo.json’ where you’re deploying the precombiled binaries?
Is that file previously installed or already existing at that location and locked somehow?
Can you try deleting that file manually and sync again?
I don’t see why enabling the USDImporter plugin would cause an issue with UGS and the only thing I can think of is that file being locked by some process.