Here are the logs. When the USB device is connected to the VM, Fusion first hangs (beach ball), and after some time stops the VM. If I try to restart the virtual machine after that, I get a "Pipe: read failed" error and cannot restart it. I need to reboot the system to Fusion become operational again.

If I uninstall the Mac OS X driver, everything works fine. Possibly it's a bug in the device driver itself, which is not releasing access to the device when Fusion assigns it to the VM, but I wonder if there is anything in Fusion that can be made, or if I should contact the driver developer, what exactly should I tell them to get it fixed.

Regards, and thanks for the interest.

Does it help if I post any other logs? For example, when the MacOS driver is not installed? Or from the client side (but since the VM crashes, I suspect there wont be anything at the client logs)...