Osram/Sylvania Lightify (it works)

By any chance are you doing this with a Hello Home Action? The default time range for motion is bizarre, I had several unexpected results until I figured out that was the reason. Also, there’s an undocumented “feature”: a HHA won’t run at all if you’re already in the mode that HHA changes to. Both are discussed here:

If you’re not using a Hello Home Action, these don’t apply,but just in case…