shutil.move cannot move between drives

I am trying to move files to a mapped network drive that I have permissions for.
But it does not work. There have been other posts with this issue, but none of them have an answer. Anybody know what the deal is?

  File "C:\Program Files (x86)\Python37-32\lib\shutil.py", line 557, in move
    os.rename(src, real_dst)
OSError: [WinError 17] The system cannot move the file to a different disk drive: 'C:\\Users\\opcon\\pyscripts\\crif\9049_24360_20200102223356_.csv' -> 'G:\\b_129049_24360_20200102223356_.csv'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/opcon/pyscripts/fix_and_scan_crifloans.py", line 379, in fix_crifloan_csvs_exe
    shutil.move(local_full_file_name, full_file_name_b)
  File "C:\Program Files (x86)\Python37-32\lib\shutil.py", line 571, in move
    copy_function(src, real_dst)
  File "C:\Program Files (x86)\Python37-32\lib\shutil.py", line 257, in copy2
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "C:\Program Files (x86)\Python37-32\lib\shutil.py", line 121, in copyfile
    with open(dst, 'wb') as fdst:
PermissionError: [Errno 13] Permission denied: 'G:\\b_129049_24360_20200102223356_.csv'

This is actually an issue with my Windows Permissions, this just was not immediately evident as windows says I should have permissions.