Better strongholds don't generate sometimes. There was a frozen river nearby so I removed that biome from the blacklist and recreated the world. Still didn't generate a better stronghold. No oceans nearby. Is this a mod compatibility issue? I'll leave a list of all my mods and their versions.

Seed: -4640855178592038691
Mods:
Abnormals Core: 3.1.1
Auto Reg Lib: 1.6-49
Bayou Blues: 1.0.4
YUNGS Better Caves: 1.1.2
YUNGS Better Mineshafts: 2.0.3
YUNGS Better Strongholds: 1.1
Oh The Biomes You'll Go: 1.2.9
BYG Enhanced Trees: 1.0
Dungeon Crawl: 2.2.4
Optifine: G8
Quark: r2.4-312
Subterranean Wilderness: 1.2.1
TerraForged: 0.2.10
YUNGS API: 6

Can you pastebin a latest.log when running your modpack?

latest.log
Pastebin.

Have you tried in a brand new world? And if it's a Terraforged world - when creating the world, double check in the Terraforged settings that Better Strongholds are listed.

Ah, I didn't touch any of the Terraforged settings when I made my world. After looking at the default Terraforged settings I can see that both vanilla strongholds and better strongholds are enabled. Disabling vanilla strongholds gave me what I wanted.