unsupported operand type(s) for +: 'float' and 'NoneType'

[GregValiant]

Hi Aldo.
This came up on one of the forums (Reddit?). I was not able to reproduce it then but it came up today on a "One at a Time" a project of my own.
"...\ZOffsetPlugin\ZOffsetPlugin.py", line 144, in _filterGcode
2024-07-18 20:07:00,446 - ERROR - [MainThread] UM.Qt.Bindings.OutputDeviceManagerProxy._writeToDevice [163]: adjusted_z = round(float(result.group(2)) + z_offset_value, 5)
2024-07-18 20:07:00,446 - ERROR - [MainThread] UM.Qt.Bindings.OutputDeviceManagerProxy._writeToDevice [163]: TypeError: unsupported operand type(s) for +: 'float' and 'NoneType'

It was necessary to un-install the plugin so I could save the project file.
GL1000 Bar Clamp.zip