html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/4087#issuecomment-632644348,https://api.github.com/repos/pydata/xarray/issues/4087,632644348,MDEyOklzc3VlQ29tbWVudDYzMjY0NDM0OA==,14808389,2020-05-22T11:29:40Z,2020-05-22T11:59:40Z,MEMBER,"thanks for the hint. Yes, that seems to have been fixed since the last release (#3951, I believe). It's going to be part of the next release, which should be soonish (see #4031).","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,623131373
https://github.com/pydata/xarray/issues/4087#issuecomment-632642328,https://api.github.com/repos/pydata/xarray/issues/4087,632642328,MDEyOklzc3VlQ29tbWVudDYzMjY0MjMyOA==,5821660,2020-05-22T11:24:52Z,2020-05-22T11:24:52Z,MEMBER,"@keewis I've the same output as the OP. Here is my xr.show_versions():

```
INSTALLED VERSIONS
------------------
commit: None
python: 3.8.2 | packaged by conda-forge | (default, Apr 16 2020, 18:04:51) 
[GCC 7.3.0]
python-bits: 64
OS: Linux
OS-release: 4.12.14-lp151.28.48-default
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: de_DE.UTF-8
LOCALE: de_DE.UTF-8
libhdf5: 1.10.5
libnetcdf: 4.7.4

xarray: 0.15.1
pandas: 1.0.3
numpy: 1.18.1
scipy: 1.4.1
netCDF4: 1.5.3
pydap: None
h5netcdf: 0.8.0
h5py: 2.10.0
Nio: None
zarr: None
cftime: 1.1.1.2
nc_time_axis: None
PseudoNetCDF: None
rasterio: None
cfgrib: None
iris: None
bottleneck: 1.3.2
dask: 2.14.0
distributed: 2.14.0
matplotlib: 3.2.1
cartopy: 0.17.0
seaborn: None
numbagg: None
setuptools: 46.1.3.post20200325
pip: 20.0.2
conda: None
pytest: 5.4.1
IPython: 7.13.0
sphinx: None
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,623131373
https://github.com/pydata/xarray/issues/4087#issuecomment-632639967,https://api.github.com/repos/pydata/xarray/issues/4087,632639967,MDEyOklzc3VlQ29tbWVudDYzMjYzOTk2Nw==,14808389,2020-05-22T11:19:10Z,2020-05-22T11:24:11Z,MEMBER,"that's strange. If I run it, I get
```python
In [1]: import pandas as pd 
   ...: import xarray as xr

In [2]: data3 = pd.DataFrame([(1,  2, 1), (2, 2, 1)],columns=['x', 'B', 'A']) 
   ...: data3 = data3.set_index(['x']) 
   ...: data3.rename_axis('tag', axis=1, inplace=True) 
   ...: data3 = data3.stack() 
   ...:  
   ...: data3
Out[2]: 
x  tag
1  B      2
   A      1
2  B      2
   A      1
dtype: int64

In [3]: xr.DataArray.from_series(data3).sel(tag='B')
Out[3]: 
<xarray.DataArray (x: 2)>
array([2, 2])
Coordinates:
  * x        (x) int64 1 2
    tag      <U1 'B'
```
which I believe is what you expect.

Edit: could you try updating `pandas`?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,623131373