add in a fix for tip pressence when using the ot3simulator backend

api/src/opentrons/hardware_control/backends/ot3controller.py

@@ -1369,3 +1369,8 @@ async def get_tip_status(self, mount: OT3Mount) -> TipStateType:
 
     def current_tip_state(self, mount: OT3Mount) -> Optional[bool]:
         return self.tip_presence_manager.current_tip_state(mount)
+
+    def _update_tip_state(self, mount: OT3Mount, status: bool) -> None:
+        """This is something we only use in the simulator.
+        It is required so that PE simulations using ot3api don't break."""
+        pass

api/src/opentrons/hardware_control/backends/ot3simulator.py

@@ -764,3 +764,8 @@ async def update_tip_detector(self, mount: OT3Mount, sensor_count: int) -> None:
 
     async def teardown_tip_detector(self, mount: OT3Mount) -> None:
         pass
+
+    def _update_tip_state(self, mount: OT3Mount, status: bool) -> None:
+        """This is something we only use in the simulator.
+        It is required so that PE simulations using ot3api don't break."""
+        self._sim_tip_state[mount] = status

api/src/opentrons/hardware_control/ot3api.py

@@ -2094,6 +2094,7 @@ async def pick_up_tip(
         def add_tip_to_instr() -> None:
             instrument.add_tip(tip_length=tip_length)
             instrument.set_current_volume(0)
+            self._backend._update_tip_state(realmount, True)
 
         await self._move_to_plunger_bottom(realmount, rate=1.0)
         if (
@@ -2194,6 +2195,8 @@ def _remove_tips() -> None:
             await self._home([Axis.by_mount(mount)])
 
         _remove_tips()
+        # call this in case we're simulating
+        self._backend._update_tip_state(realmount, False)
 
     async def clean_up(self) -> None:
         """Get the API ready to stop cleanly."""