Thanks for your report. As always, please attach the DXF file in question, so we can try and reproduce the issue here. Thanks.

You can fix the missing G01 by replacing your file postprocessors/GCodeLaserOffsetMM.js with the attached updated file.

You could also adjust the number of digits in the postprocessor:

    this.decimals = 4;

Or add "homing" to that postprocessor if desired:

    this.footer = [
        "[N] add your extra codes here for homing"
    ];

Out of curiosity: does your controller reject the four decimal digits or is this just a cosmetic issue? Thanks.