GMG then AE then Pitstop - cutter issue.

Hi

This is my first post(of many I expect) so apologies if this may have been answered elsewhere.

I've got a really strange bug.

At the moment we are doing a general colour conversion to CMYK (excluding spot colours) to all files

Then we put the files through automation engine to impose them and pull of any cutter lines and create a separate cutter file. ( I believe it's using iCut for this)

Then I'm wanting to use pitstop to convert any remaining spot colours to CMYK before i move the jobs to the machines.

Problem is when AE is imposing the job it isn't actually removing the cutter lines it just seems to be removing their properties so they have no stroke and putting them on a different seperation titled None

Then when these files go through the pitstop spot conversion the lines are getting their colour back and being converted into CMYK

Like i said its a strange one but if anyone has encountered a similar issue I'd love some help on it.

Thanks for any help you guys can give me.