Adding new PDO (Transmit and Receive) only adds it to Mapping but not to Parameters

[BriacLR]

When I want to add a new PDO, the GUI only adds it to the XXX PDO Mapping and not to the XXX PDO Parameters. XXX is both Transmit and Receive.
Also, removing a PDO from the Mapping is not working, probably because its corresponding PDO Parameters does not exist.

Error message when trying to remove a PDO:

Traceback (most recent call last):
File "C:\git\python-objdictgen\venv\Lib\site-packages\objdictgen\ui\subindextable.py", line 918, in OnDeleteIndexMenu
self.Manager.ManageEntriesOfCurrent([], [index])
File "C:\git\python-objdictgen\venv\Lib\site-packages\objdictgen\nodemanager.py", line 503, in ManageEntriesOfCurrent
self.RemoveCurrentVariable(index)
File "C:\git\python-objdictgen\venv\Lib\site-packages\objdictgen\nodemanager.py", line 555, in RemoveCurrentVariable
node.RemoveLine(index, 0x19FF)
File "C:\git\python-objdictgen\venv\Lib\site-packages\objdictgen\node.py", line 927, in RemoveLine
self.Dictionary.pop(i)
KeyError: 6145