Hi PhilippD!
It seems that you've hit a defect which crept into Workstation 9.0.2's handling of remote USB devices. We've fixed the issue in our internal builds of Workstation, but until an updated version is publicly released, it seems you'll have to roll back to Workstation 9.0.1 if you need to work around the issue.
Sorry for the trouble!
--
Darius