Updating MACH3 post from MCX 2017 to 2019 got message ; “will not be performed" ?

[Robert M]

Tried to ALT+C updatepost in Mastercam 2019 ( from a working post in MCX-2017) and got this :

#6 - 15 Aug 2022 09:38:44 AM - The post text section has no section start marker. Updating
the post processor will not be performed.


And yet, it been working fine in Mastercam 2017 past.....5yrs !
Anyone can help / knows how to fix this ?? ( or, has a Mach3 post for MasterCam 2019?)

Thank in advance, Robert

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