sorry for my poor english
Did you add the line in the .eug file?
include = "scenarios/XXX(your folder name)/(country file)"
like
include = "scenarios/Byzantine/ARM_armenia.inc"
That was it. I was looking around the various files, and when I added ARM in my .eug it worked. Though what was weird was that I could not make the 1065 and 1067 provinces part of the country for some reason. Nevertheless, they became Georgian provinces with no issues.
Making a mod by editing text files is very tedious...
At least I am done with province assignments, country creation and removals, military units and alliances...
Now I just need to fully flesh out the alt history (on the way), create the AIs, alter the POPs and write the events... And then figure out a way to changing provinces names on the map and latinify/greekify a fair number of them...