Using your custom Skydome. Everything works fine apart from the sun / moon moving (Day / Night). Tried to see if I could fix it but nothing seems out of the ordinary
Edit: Apparently it’s a known. Shame I didn’t know about it - https://.unrealengine.com/showthread.php?59071-How-Do-I-Change-The-Time-of-Day&p=222229#post222229