In the Sandbox, weapons do no damage. (Mount Blade 2: Bannerlord)

Who came across, maybe I started playing in 1.7.2, played a little in the plot, everything was ok. I decided to go to the sandbox, but here the weapon does not cause damage. Only prickly damage pass and that's it. Moreover, when I load a record, the damage goes through normal in the next battle, no, I load another record of damage. And so in a circle. Who knows what it is? I tried to create a new hero immediately went into battle and there is no damage (there is in the arena).