No compromisation?

I've been playing league since mid-season 4. Changes were made (a lot!), but never a compromisation in terms of ranks lp and I have had something stuck in my head for a long time. Why is it that when I never load completely (which doesnt happen often at all), I lose so much lp? I had this happen to me several more times recently and I lose lp as much as losing a legit game, if not, more. Pls rito fix this, I dont want to lose lp for some random loadong screen problem.