Domoticz and PiHut USB Hub

[JeroenL]

Version: 3.8153
Platform: RaspberryPi 2
Hardware: RfxCom, Honeywell HGI80, Cm15pro, Sigma Designs USB Zwave controller

Just extended my raspberry Pi 2 with a Pi Hut USB hub.
It looks like with the Pi hut connected, Domoticz no longer recognizes my RfxCom 433e.
Taking the hub away, makes everything work as before.
Other devices (zwave, HGi 80 and cm15pro) do work via the Pi Hut.

Any thoughts?

Thanks a lot,
Jeroen