The player character(s) do not have a physical reaction when struck, i dont have a way to easily fix this and every solution i find does not work for me so far, im trying though.
There MIGHT be an issue gaining XP for weapons, i only saw it once, it was reported once, i have not been able to replicate it since, i dont know how to fix it as of yet, be sure youre gaining xp before you really get into a save.