I had this happen to me too, then I noticed that the game was still saying it was version 1032 in the bottom right, for some reason even though scripthook told me to update and also Rage told me to update because of the new GTA version Steam somehow hadn't updated it properly, basically I couldn't play with the old rage and scripthook nor the new one, I ended up re-installing GTA through Steam and adding Rage, LSPDFR, SH and mods/plugins again from scratch.
BTW if you use LeFix speedo and/or Simple Fuel they will CTD your game as you go to get in a vehicle, seems like something has changed since the gunrunning update to cause these two mods to now be incompatible.