Though first I would like to say great mod, I am experiencing one small issue that is sort of the result of the design: with the pop growth and migration together, I find that once I have multiculturalism and a decent size market together, I just get slammed with so much migration from all over that my states fill up with unemployed pops much faster than I can build anything for them to do. After building a decent size byzantine empire with 8000 construction and 1B gdp I had literally millions of unemployed pops and an increase of 500k a year or more. I thought it was my welfare laws, but I had a similar experience playing netherlands later with minimal welfare (though I quit before it got that bad). I like getting migration as much as the next guy, but it is sad to never get to really improve the pops standard of living. I think the cause of this might be the pop growth in China somehow, as I was seeing (after a qingsplosian) lots of places with more population than gdp. It could also be something to do with pop growth from peasants/unemployed pops creating an unending spiral of pop growth that can never be stopped since they come in too rapidly to find higher paying jobs or necessitate automation. I have been playing with the mod for quite a while without issue, but have only recently been getting multiculturalism, so I am guessing it is something to do with China.