Program editor: tool in subprogram

I am recently new to VC, and I just programmed a welding curve which works fine. Since I added some small subprograms to change a tool, everytime I run it the tool in my welding subprogram changes to “Null” instead of weld_tip. I guess it has something to do with the tool changing, but I have no idea why.

Ps. At the end I want to take off the SME part but it is attached to the positioner, is there a possibility to detatch it after the welding loop.

Robot_welding.vcmx (128.1 KB)

This academy video should help you, you should use a native Tool of this robot:
(9. Tool Frame vs. imported Tool Frame)

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