Hi Athos,
Thanks for the report.
I only found 1 LFPO arrival via XAMAB...however I'm working now with the 2509 update files which will be different to yours currently. Anyway that was corrected. Whist doing so I did find the LFPO ARRs from the NAT region were filed as PG arrivals (i.e. via XIDIL)...so they were amended too.
The onward routings through adjacent FIRs is still WIP.
Unfortunately, this amendment has missed the forthcoming 2509 update...so will be released with 2513 in Dec.