Ah, I see you moved all lights into one blueprint. I tried doing , but then it’s not possible to change sun’s settings per map, that’s why I chose to leave them separate. I find it causes less problems to assign your own light actors in each map; I couldn’t actually get your lights working in my map.
Also, I believe skylights are static-only, which might not work to well with a full day/night cycle. I think and ambient cubemap might be better, but those are set in post-process, making it hard for a blueprint to access them. Tradeoffs… 
On another note… is it possible to make custom templates sharable on web? It would be much easier to say “download template” than to say “download blueprint, then replace old one, then set sun property…” Just a thought.