Good morning @ I’m sorry to hear that you have issues with the plugin. I did some tests on my own with a BP like one:
https://i.gyazo.com/cec46b337a6ceaebec027dc99b27ecda.png
I also created a TrueSkySequence asset and changed all the “Automatic Moon Position/rotation” to true inside the Sky keyframes. Once that is done I see the sun and moon rise and set accordingly, whats the behaviour that you are looking for? Also, I would like to mention that if you want to have moon shadows you will need to increase the “Multiplier” at the “Update Moonlight” call as for the most part, moon light is so dime that shadows are disabled.
Thanks!