Global Route Planner fails in turn decision

[sebplorenz]

CARLA version: 0.9.14

I'm using the basic agent to navigate a map. Unfortunately the global route planner is not able to find a route. It fails with the following exception:

  File "/home/sebp/workspace/carla_test/carlas/agents/navigation/basic_agent.py", line 161, in set_destination
    route_trace = self.trace_route(start_waypoint, end_waypoint)
  File "/home/sebp/workspace/carla_test/carlas/agents/navigation/basic_agent.py", line 188, in trace_route
    return self._global_planner.trace_route(start_location, end_location)
  File "/home/sebp/workspace/carla_test/carlas/agents/navigation/global_route_planner.py", line 52, in trace_route
    road_option = self._turn_decision(i, route)
  File "/home/sebp/workspace/carla_test/carlas/agents/navigation/global_route_planner.py", line 363, in _turn_decision
    cross_list.append(np.cross(cv, sv)[2])
  File "<__array_function__ internals>", line 6, in cross
  File "/home/sebp/.local/lib/python3.7/site-packages/numpy/core/numeric.py", line 1541, in cross
    axisb = normalize_axis_index(axisb, b.ndim, msg_prefix='axisb')
numpy.AxisError: axisb: axis -1 is out of bounds for array of dimension 0