Dual Extrusion Temp Issue

[nangad]

When the print is switching extruder the wrong temperature is set.

Ex.
T1
M109 S220
M104 T0 S175
...
M104 S230
At the end this set T1 to 220 and T0 to 230

Expected results
T1 should be set to 230 and T0 set to 175.

The code below work on my machine
T1
M109 S220
M104 T0 S175
...
M104 T1 S230

FYI. The Gcode is generating on Cura 3.2. I posted the issue there too. I'm not sure if the issue is with GPX or CuraEngine

Ultimaker/Cura#3243

[jepler]

FWIW I believe this is a Cura 3.2 bug, still present in 3.4 (the latest version I've tried). Here's why I believe so:

If you post some gcode which ONLY uses tool 1, it uses a line such as "M109 S235" with no "T" number to set the temperature of extruder 1 to 235°C, so clearly they believe that reprap gcode will apply a prior T number to a M109 line which does not specify T.

I discovered this while trying to use post-processing to replace "M109 S" and "M104 S" with "M10X T0", but this was not a viable solution in general.