Modified export_descr_building causes CTD onle for late campaign

[JaNcEn47]

I've created a modified EDB to tweak RR and AOR to my liking (mostly using the building_present_min_level line) and it works fine with the early era campaign.
But everytime I try to begin a game in late era, it causes CTD.
I really don't know where to search, I've no idea what would cause this.
What may be different between the two games? Something about mongols or teutons?

If you know something, please let me know! The shattered Byzantine Empire needs my help to reconquer Constantinopolis!

[JaNcEn47]

Problem solved!
Papal states units were still on the unit pool of walls. With a building level requirement.
Building min level only works with buildings without bonuses, it there is, it causes CTD
This level was not achieved in early campaign for Rome so it worked, but it was in late so it didn't!
Solved the problem by deleting the requirements (which were useless anyway).