This has been a continuous issue throughout the entire world. I'm playing on a modpack, so here are the other structure/worldgen mods they have:

terralith
ecologics
wilder wild
wondrous wilds
the graveyard

There’s unfortunately not much we can do about this due to how vanilla salt generation works. The distribution can occasionally overlap with other structures, especially if they’re large and use jigsaw pieces. However we do hope there will be a way to address this eventually, so we’ll keep it up for future reference!