SolvedCura Z-axis not moving up as it should in new Cura 3.6.0

Application Version
Cura 3.6.0

Platform
Windows 10

Printer
Anet A8

Steps to Reproduce
Print a 26 mm cylinder with threads in them

Actual Results
At about 15% the Z-axis on my printer still read 0.2 mm and it had printed many layers at the same height.

PI3_PluggMatt v1.zip

Expected results
A 15 mm cylinder with threads in the inside.

Additional Information
Printer was working fine for 4 month then I upgraded to latest Cura.

Great, that confirms the bug and it has to be one of the oddest bugs I've seen in a long time. The reason that the printer is not moving above 0.2mm is because the model file name is PluggMått v1.stl. I know that sounds crazy but it's true. The problem occurs because Cura 3.6 inserts into the gcode comments that contain that name like this excerpt from you bad gcode file:

;LAYER:1
M140 S85
G1 F2100 E30.77954
M106 S127.5
;MESH:PluggMått v1.stl
G0 F4500 X97.416 Y105.849 Z0.4
;TYPE:WALL-INNER
G1 F2100 E33.77954
G1 F3000 X97.284 Y106.229 E33.79559

I'm guessing that the firmware in your printer doesn't like the å character and somehow that confuses the firmware sufficiently so that the next line in the gcode gets treated as a comment. In the example code above the next line contains the move to the layer above (Z0.4)! and so the move never happens and the nozzle stays at 0.2mm for the whole print.

So a simple workaround should be not to use model files that have file names containing anything but ascii characters.

Is this a bug in Cura or a bug in Marlin or both?