Z wave registration a bit flaky in the last week

Has anyone else noticed that in the last week registering z-wave modules is a bit hit and miss?
I upgraded to Ubuntu 17.10 on my PC so my python version was up to speed for the lastest HA update, reinstalled HA, and reset my Aeotec Gen 5. When I came re-adding all my Fibaro modules I have noticed that some will register and some will not. Then when I have rebooted the PC and had a cup of tea some of the unregistered modules will then register.
Very frustrating. I was wondering if this is common problem for anyone else?

Same here. Ubuntu 17.10, Fresh HA install, and Aeotec Gen5 zstick. Zwave network has been super unstable for me.