Adding a banner page to a grouped document set, sequence error

I have a grouped job with document set grouping set in the job preset.

The output preset has a barcode for the jobID, sequence, page number, page count

It all works great, grouped documents with correct barcode…

If I add a banner page I get this error…
[0010] W3001 : Error while executing plugin: There was an error running the output creation process caused by ApplicationException: expression ‘set.metadata.JobId’ at line 1, column 3 in pattern ‘${set.metadata.JobId}${set.sequence.job,“0000000000”}${Math.round(page.sequence.set/2),“00”}${set.count.pages/2,“00”}’ yields value undefined (SRV000042) (SRV000001)

The syntax for the page 1 barcode in my output preset is: ${set.metadata.JobId}${set.sequence.job,“0000000000”}${Math.round(page.sequence.set/2),“00”}${set.count.pages/2,“00”} with a condition page.nr == 1 && page.nr == document.count.pages/2

I know by adding a banner page I have added a new page1 to my job that needs ignored, I know I can add text to the banner page with page.banner && page.front as the condition, that seems ok on a normal job but on this grouped job the error always shows, I seem to have tried everything!

Can you let us know please what option is selected for Banners group → Every on the Separation Options page of the Output preset? Because it could be that some of these fields aren’t available on the level of the option selected.