To me it looks like a random issue. Today for example everything was fine, but then a random ped decided to start fighting me while i was proceeding a normal traffic stop and hit off my sunglasses. After i arrested him and ended the stop, i reloaded my character thru skin control to have my glasses back. After THIS i had the dead backup issue. So maybe...MAYBE... EUP and/or skin control causing it (i cannot see in your video if you use EUP, cause you stay in your vehicle). It was my mistake to not unloaodplugin LSPDFR before i reloaded my ped (maybe this could solve the problem).
So i am not sure, just things i noticed. Actually i am more sure the dead backup is related LSPDFR 0.3 itself. It is simply a (well you can call it "gamebreaking") bug.
Yeah many many if´s and could be´s sorry, but as i wrote in several dead backup threads (and there are many already), i have no plan of coding at all and just use your nice stuff . So i could be very wrong. I just tell what i see and tested.