TypeError: Cannot join tz-naive with tz-aware DatetimeIndex

[sentry-io[bot]]

Sentry Issue: API-V

TypeError: Cannot join tz-naive with tz-aware DatetimeIndex
(9 additional frame(s) were not displayed)
...
  File "pandas/core/series.py", line 4140, in align
    broadcast_axis=broadcast_axis,
  File "pandas/core/generic.py", line 8825, in align
    fill_axis=fill_axis,
  File "pandas/core/generic.py", line 8915, in _align_series
    other.index, how=join, level=level, return_indexers=True
  File "pandas/core/indexes/datetimes.py", line 791, in join
    this, other = self._maybe_utc_convert(other)
  File "pandas/core/indexes/datetimes.py", line 810, in _maybe_utc_convert
    raise TypeError("Cannot join tz-naive with tz-aware " "DatetimeIndex")

[wholmgren]

apparently only an issue on dev-dashboard.