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/2827#issuecomment-475158317,https://api.github.com/repos/pydata/xarray/issues/2827,475158317,MDEyOklzc3VlQ29tbWVudDQ3NTE1ODMxNw==,48764870,2019-03-21T09:18:53Z,2019-03-21T09:18:53Z,NONE,"Thank you for your answer @rabernat, i totally agree, more information is requiered but afortunately I found my stupid mistake. 

I was duplicating some files in my file_list variable driving crazy to the xr.open_mfdataset().
I solve this issue with this line and now xarray works properly:
    # Delete repeated elements
    file_list=list(dict.fromkeys(file_list))

Thank you!
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