Been playing FTB Rev on and off for a few months, and took a while to actually get to the Nether. When I did, I'm getting zero spawns on the Nether Fortress except for blazes from the blaze spawner. I tried to chunk load the whole fortress and even found a second fortress, but still, no spawns aside from blaze spawners. Realized it's not just the Nether Fortress. Only spawns in the Nether are the fire foxhounds from Quark and a few Zombie Pigmen. Tried tweaking Quark configs to allow for Blazes to spawn naturally, and have restarted both the game, FTB launcher, and computer to try and fix the issue, but still no luck. Created a Creative mode FTB Rev and found a larger fortress and finally got Wither Skeleton spawns and Ghasts with Blazes spawning naturally outside their spawners. Really don't want to dump the world I've spent a few good weeks on with mid tier build ups for a few magick mods if there is a config or way to reset the spawn rates in the Nether. Any help is appreciated.