Not sure whats going on but somebody else marked the question as answered… (and I don’t have permission to un-answer it… waat)
Sorry for any confusion I was thanking you for the compliment but haven’t figured out this issue yet.
I’ve had a chance to play with the Cascaded shadow map settings to no avail. The light is Movable and lighting is fully dynamic. Even thought this question is “closed” I don’t suppose you could tell me if there was a specific property you had in mind? Or perhaps you could point me to some documentation. Searched “cascaded” on the wiki here with zero results 
I’ve tried settings the “Dynamic Shadow Distance Movable” property up and slowly incremented up to ridiculous amounts (9,000,000+) and while I can see the “shape” of the shadow changing it still fades away :<
I’ve also tried increasing the Number of cascades and lowering the shadow fadeout distance fraction and transition fraction.
Judging by the names of these properties it seems like they should be spot on but besides making the shadow jiggle around a bit they don’t seem to actually increase the distance where the shadow will dissipate?
Thanks for you time. If you have any ideas I’d love to hear them.
(Don’t really want to create a duplicate question to get this done!)