After having trouble syncing myself I found a solution that seems to work. Not sure if this will help you Brad, alas it may help someone else.
- Tickr connected to Apple Watch
- Kickr and cadence connected to iPad
- Apple Watch connected to iPad
- Zwift on iPad
- Companion on iPhone
Seems that the issue with syncing lies with:
- AppleTV and companion or AppleTV alone.
- Riding with Zwift on iPhone alone
The only way I was able to get round these issues was to use an iPad in the mix.