A few thoughts. Motion Lighting cannot accommodate your initial condition, it will only be triggered by the motion event. However, the app is optimized so that it doesn't generate unnecessary commands if the light is on. The log entry you pointed out is one such optimization. The device simply reported as being "on," at the time when the motion was triggered (in your case, the scene device). You can validate this by looking at Device Details page. I am 100% certain that your (scene) device switch status is showing as "on".
Thanks for your reply @bobbyD
Sorry, I should have clarified, my condition is motion event only.
When motion is detected, the lifx light should run the scene, based on the mode of the day.
I've tried to record this here; hopefully this clarifies the issue I experience:
You are looking at the wrong device in your YouTube video. Your rule uses the scene device, not the Study-Filx device. That Lifx device is off, but the scene device you are using in your rule is "on" (Study-Lifx-bright device for the original example while your mode was "Evening"), based on what the app sees, that's why you are getting the "not turning on, already on" message.
Are you saying that in the video, for the middle windows, instead of showing "scene devices" (from devices menu), I should show the "scene" (from app menu) itself?
To be honest, you are complicating yourself by creating a scene if all you do is setting color and brightness (level) to one Lifx device. You could define the color and level in the Motion Lighting for the Lifx device. Scenes are great if you adjust different devices at the same time, and even then, I personally prefer doing it in the app directly, specifically to avoid the confusion you are running into.
I have re-recorded the session again, this time around with the Device > Scene being shown in the middle: here
As you can see, both scenes are OFF when motion is detected.
One of the reasons I use scene is because the setting is not only used by motion lighting, but also rules too; by having scene, it'll be easier for me to maintain it (rather than I need to go through multiple rules, motion lighting, etc)
You've already done so by reaching out in the community. The next release might give you a better tool to handle your use case. Unfortunately, what we cannot replicate, our engineers can't fix, but we, along with other community members, can offer a work around solution for your problem.