Debugging InvalidIndexError in Arize Phoenix with LlamaIndex

{
	"name": "InvalidIndexError",
	"message": "Reindexing only valid with uniquely valued Index objects",
	"stack": "---------------------------------------------------------------------------
InvalidIndexError                         Traceback (most recent call last)
Cell In[56], line 4
      1 from phoenix.session.evaluation import get_qa_with_reference, get_retrieved_documents
      3 retrieved_documents_df = get_retrieved_documents(px.active_session())
----> 4 queries_df = get_qa_with_reference(px.active_session())

File ~/Development/agent/.venv/lib/python3.12/site-packages/phoenix/trace/dsl/helpers.py:68, in get_qa_with_reference(obj, start_time, stop_time, project_name)
     61 def get_qa_with_reference(
     62     obj: CanQuerySpans,
     63     start_time: Optional[datetime] = None,
     64     stop_time: Optional[datetime] = None,
     65     project_name: Optional[str] = None,
     66 ) -> pd.DataFrame:
     67     project_name = project_name or get_env_project_name()
---> 68     return pd.concat(
     69         cast(
     70             List[pd.DataFrame],
     71             obj.query_spans(
     72                 SpanQuery().select(**IO).where(IS_ROOT),
     73                 SpanQuery()
     74                 .where(\"span_kind == 'RETRIEVER'\")
     75                 .select(span_id=\"parent_id\")
     76                 .concat(
     77                     RETRIEVAL_DOCUMENTS,
     78                     reference=DOCUMENT_CONTENT,
     79                 ),
     80                 start_time=start_time,
     81                 stop_time=stop_time,
     82                 project_name=project_name,
     83             ),
     84         ),
     85         axis=1,
     86         join=\"inner\",
     87     )

File ~/Development/agent/.venv/lib/python3.12/site-packages/pandas/core/reshape/concat.py:395, in concat(objs, axis, join, ignore_index, keys, levels, names, verify_integrity, sort, copy)
    380     copy = False
    382 op = _Concatenator(
    383     objs,
    384     axis=axis,
   (...)
    392     sort=sort,
    393 )
--> 395 return op.get_result()

File ~/Development/agent/.venv/lib/python3.12/site-packages/pandas/core/reshape/concat.py:680, in _Concatenator.get_result(self)
    678         obj_labels = obj.axes[1 - ax]
    679         if not new_labels.equals(obj_labels):
--> 680             indexers[ax] = obj_labels.get_indexer(new_labels)
    682     mgrs_indexers.append((obj._mgr, indexers))
    684 new_data = concatenate_managers(
    685     mgrs_indexers, self.new_axes, concat_axis=self.bm_axis, copy=self.copy
    686 )

File ~/Development/agent/.venv/lib/python3.12/site-packages/pandas/core/indexes/base.py:3885, in Index.get_indexer(self, target, method, limit, tolerance)
   3882 self._check_indexing_method(method, limit, tolerance)
   3884 if not self._index_as_unique:
-> 3885     raise InvalidIndexError(self._requires_unique_msg)
   3887 if len(target) == 0:
   3888     return np.array([], dtype=np.intp)

InvalidIndexError: Reindexing only valid with uniquely valued Index objects"
}