I can capture exposures to the local (RPI3) store just fine, I can do multiple exposures with varying shutterspeeds and it all works great without delay. However, when I try to set it to "Client" instead of "Local" it gets stuck on the dreaded "Downloading" status in Ekos and then I get nothing. To recover I typically have to turn off everything and restart the inidserver.
It does seem to create the /tmp file referenced in the debug log on the local side (in /tmp on the RPI3), but nothing appears to happen on the client side (Ekos VM in VirtualBox). Not sure how to go about troubleshooting it.