Mp-186 has no DOS; what is the reason for this?

Materials Project
1

Looks like mp-186 has BS but no DOS. Is this just the result of a wf with failed NSCF uniform job while line mode succeeded? Or something else?

Script to reproduce

from mp_api.client import MPRester
from mp_api.client.core.exceptions import MPRestError

MPID = "mp-186"

with MPRester() as mpr:
    # 1. the summary doc's has_props flags: bandstructure yes, dos no
    props = mpr.materials.summary.search(material_ids=[MPID], fields=["has_props"])[0].has_props
    print(f"{MPID} has_props: bandstructure={props['bandstructure']}, dos={props['dos']}")

    # 2. estructure doc shows bs is present, es.dos is not
    es = mpr.materials.electronic_structure.search(
        material_ids=[MPID], fields=["bandstructure", "dos"]
    )[0]
    print(f"  electronic_structure.bandstructure = {'present' if es.bandstructure else None}")
    print(f"  electronic_structure.dos           = {es.dos}")

    # 3. so actually asking for the DOS object fails
    mpr.get_dos_by_material_id(MPID)

Output is

Retrieving SummaryDoc documents: 100%|████████████████████████████████████████████████| 1/1 [00:00<00:00, 17476.27it/s]
mp-186 has_props: bandstructure=True, dos=False
Retrieving ElectronicStructureDoc documents: 100%|████████████████████████████████████| 1/1 [00:00<00:00, 33026.02it/s]
  electronic_structure.bandstructure = present
  electronic_structure.dos           = None
Retrieving ElectronicStructureDoc documents: 100%|████████████████████████████████████| 1/1 [00:00<00:00, 38479.85it/s]
Traceback (most recent call last):
  File "/Users/ardunn/Downloads/tmp/mp186_no_dos.py", line 32, in <module>
    mpr.get_dos_by_material_id(MPID)
  File "/Users/ardunn/Downloads/tmp/.venv/lib/python3.11/site-packages/mp_api/client/mprester.py", line 1293, in get_dos_by_material_id
    return self.materials.electronic_structure_dos.get_dos_from_material_id(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/ardunn/Downloads/tmp/.venv/lib/python3.11/site-packages/mp_api/client/routes/materials/electronic_structure.py", line 598, in get_dos_from_material_id
    raise MPRestError(f"No density of states data found for {material_id}")
mp_api.client.core.exceptions.MPRestError: No density of states data found for mp-186

Dependencies were:

# "mp-api==0.46.5",
# "pymatgen==2026.5.4",
2

wf with failed NSCF uniform job while line mode succeeded?

Potentially, but I’m not certain. Could also be that a uniform scan calculation was never performed.

The line mode calculations were run back in 2015 and there are no recorded uniform calcs: mp-186 Calculations Page