Command 'CreateAndEditFile' raised error.

When I try to create a new file using "Shift+F", I get the following error. But a file without extension is getting created, though.

Command 'CreateAndEditFile' raised error.

Traceback (most recent call last):
  File "fman\impl\plugins\command_registry.py", line 128, in _execute_command
  File "C:\Users\rsivasub\AppData\Local\fman\Versions\1.5.6\Plugins\Core\core\commands\__init__.py", line 486, in __call__
    super().__call__(file_to_edit)
  File "C:\Users\rsivasub\AppData\Local\fman\Versions\1.5.6\Plugins\Core\core\commands\__init__.py", line 393, in __call__
    popen_kwargs = strformat_dict_values(editor, {'file': path})
  File "C:\Users\rsivasub\AppData\Local\fman\Versions\1.5.6\Plugins\Core\core\util.py", line 17, in strformat_dict_values
    value = list(map(replace, value))
  File "C:\Users\rsivasub\AppData\Local\fman\Versions\1.5.6\Plugins\Core\core\util.py", line 13, in replace
    return value.format(**replacements)
KeyError: '90150000-0011-0000-0000-0000000FF1CE'

Start by reproducing the Shift+F action in fman and read the traceback locations in Plugins/Core/core/commands/init.py and Plugins/Core/core/util.py, especially strformat_dict_values. Done means CreateAndEditFile creates and opens the requested new file without raising the reported KeyError.