Hello All,
I have been having a problem that i cant seem to find a solution to.
I have a slider set to control the time of day through a geographically plausible sun controller ( I am an arch viz guy 
)
The whole setup runs so smoothly in the editor viewport when I play, but seems to fall apart when outside the editor.
The intent is to allow interactive control of the time of day, so holding and dragging around should be smooth and enjoyable and it is, in the editor. I have been trying to remove all i can from event tick thinking that was the problem, but maybe its a bug or dependency on data available in the editor, but not in the engine? The sun controller script has quite an extensive construction script. (its based on the one from here: UE4 Geographically Correct Sun System , its a great start, but I made it update skylight, streamlined the interface and have made some more tweaks to get the functionality I want)
I have a lot going on in the project though, and i’m no coder, so it might not be obvious to me what is going on.
There is (what I think) is the relevant screenshot.
PS: The working with ue4 has been awesome and from what i have see, the community is equally as awesome! Ill have to get in here and try to help out as well.