Hello, I download the mod "Populated Cities," and upon seeing that some randomly generated NPCs have 50 levels, sought to lower those.

However, after changing the level used in each template using Creation Kit, the game freezes when I fast travel to those areas where new NPCs are generated.

For ex, I only edited A veteran's level from 50 to 25, which freezed the game when I fast traveled to Whiterun.

I've spent lasat 2 days trying to figure out why doing various tests, but none of them worked. Changing the said NPC's template level to 49 worked but the game still crashed when I changed it to 55. I really don't see a pattern here.

Could anyone please help me?