After this last rust update turrets are shooting at players but not doing damage.

hi, use TurretsIgnorePlayers flag

I did.

this is my config. 

{
  "Config Version": "2.1.3",
  "Default RuleSet": "default",
  "Configuration Options": {
    "handleDamage": true,
    "useZones": true,
    "Trace To Player Console": false,
    "Trace To Server Console": false,
    "Maximum Distance From Player To Trace": 0.0,
    "Prevent Water From Extinguishing BaseOven": false,
    "Prevent Players From Being Marked Hostile": false
  },
  "Mappings": {
    "default": "default"
  },
  "Schedule": {
    "enabled": false,
    "useRealtime": false,
    "broadcast": false,
    "entries": []
  },
  "RuleSets": [
    {
      "name": "default",
      "enabled": true,
      "defaultAllowDamage": false,
      "flags": "NoHeliDamage, NoHeliDamageQuarry, HumanNPCDamage, LockedBoxesImmortal, LockedDoorsImmortal, PlayerSamSitesIgnorePlayers, TrapsIgnorePlayers, TurretsIgnorePlayers",
      "rules": [
        "anything can hurt dispensers",
        "anything can hurt resources",
        "anything can hurt barricades",
        "anything can hurt traps",
        "anything can hurt heli",
        "anything can hurt npcs",
        "anything can hurt players",
        "nothing can hurt ch47",
        "nothing can hurt cars",
        "nothing can hurt mini",
        "nothing can hurt snowmobiles",
        "nothing can hurt ridablehorses",
        "cars cannot hurt anything",
        "mini cannot hurt anything",
        "ch47 cannot hurt anything",
        "scrapheli cannot hurt anything",
        "players cannot hurt players",
        "players cannot hurt traps",
        "guards cannot hurt players",
        "fire cannot hurt players",
        "traps cannot hurt players",
        "highwalls cannot hurt players",
        "barricades cannot hurt players",
        "mini cannot hurt mini",
        "npcs can hurt players",
        "junkyard cannot hurt anything",
        "junkyard can hurt cars"
      ]
    }
  ],
  "Entity Groups": [
    {
      "name": "barricades",
      "members": "Barricade, icewall, GraveYardFence",
      "exclusions": "barricade.concrete, barricade.sandbags, barricade.metal, barricade.stone, barricade.wood, barricade.woodwire"
    },
    {
      "name": "dispensers",
      "members": "BaseCorpse, HelicopterDebris, PlayerCorpse, NPCPlayerCorpse, HorseCorpse, SkyLantern",
      "exclusions": ""
    },
    {
      "name": "fire",
      "members": "FireBall, FlameExplosive, FlameThrower, BaseOven, FlameTurret, rocket_heli_napalm, napalm, oilfireball2",
      "exclusions": ""
    },
    {
      "name": "guards",
      "members": "bandit_guard, scientistpeacekeeper, sentry.scientist.static",
      "exclusions": ""
    },
    {
      "name": "heli",
      "members": "PatrolHelicopter",
      "exclusions": ""
    },
    {
      "name": "highwalls",
      "members": "SimpleBuildingBlock, wall.external.high.ice, gates.external.high.stone, gates.external.high.wood",
      "exclusions": ""
    },
    {
      "name": "ridablehorses",
      "members": "RidableHorse",
      "exclusions": ""
    },
    {
      "name": "cars",
      "members": "BasicCar, ModularCar, BaseModularVehicle, BaseVehicleModule, VehicleModuleEngine, VehicleModuleSeating, VehicleModuleStorage, VehicleModuleTaxi, ModularCarSeat",
      "exclusions": ""
    },
    {
      "name": "mini",
      "members": "minicopter.entity",
      "exclusions": ""
    },
    {
      "name": "scrapheli",
      "members": "ScrapTransportHelicopter",
      "exclusions": ""
    },
    {
      "name": "ch47",
      "members": "ch47.entity",
      "exclusions": ""
    },
    {
      "name": "npcs",
      "members": "ch47scientists.entity, BradleyAPC, CustomScientistNPC, CustomScientistNpc, ScarecrowNPC, HumanNPC, NPCPlayer, ScientistNPC, TunnelDweller, SimpleShark, UnderwaterDweller, Zombie, ZombieNPC",
      "exclusions": ""
    },
    {
      "name": "players",
      "members": "BasePlayer, FrankensteinPet",
      "exclusions": ""
    },
    {
      "name": "resources",
      "members": "ResourceEntity, TreeEntity, OreResourceEntity, LootContainer",
      "exclusions": "hobobarrel.deployed"
    },
    {
      "name": "snowmobiles",
      "members": "snowmobile, tomahasnowmobile",
      "exclusions": ""
    },
    {
      "name": "traps",
      "members": "AutoTurret, BearTrap, FlameTurret, Landmine, GunTrap, ReactiveTarget, TeslaCoil, spikes.floor",
      "exclusions": ""
    },
    {
      "name": "junkyard",
      "members": "magnetcrane.entity, carshredder.entity",
      "exclusions": ""
    }
  ],
  "Allow Killing Sleepers": false,
  "Allow Killing Sleepers (Ally Only)": false,
  "Allow Killing Sleepers (Authorization Only)": false,
  "Ignore Firework Damage": true,
  "Ignore Campfire Damage": false,
  "Ignore Ladder Damage": false,
  "Ignore Sleeping Bag Damage": false
}

the update didn't change this. that was interference, which blocks targeting while active.

I tried TurretsIgnorePlayers and player turrets don't target me. if I unload TruePVE and come back to the turret then it targets me and does damage as expected

you'll have to be more specific. there are 3 flags for 3 different kinds of turrets

TurretsIgnorePlayers - normal player turrets (if it's not owned by a player then it's not a players turret, ent who)
StaticTurretsIgnorePlayers - normal turret with no owner, added via RustEdit, spawned via a plugin, or one that has its owner removed
SafeZoneTurretsIgnorePlayers - safe zone turret with no owner (ent who shows ownerid 0)