Some structures do not generate as a whole piece

[HellaMurky]

I noticed this issue in a new modded world with 1.21.8, then found the same behavior in an older modded 1.21.5 world (MSS was added later for new chunks). This was reproducible in a new 1.21.8 world with just the MSS mod and Fabric API.
https://mclo.gs/lOb4VHj

I didn't test the data pack version, other Moog's Structures, MC versions, or mod loaders. A user comment on CurseForge mentioned a similar issue with NeoForge 1.21.7.

The Arena and Large Tower were consistently broken. Sometimes Castle Tower generated okay.

Fabric 1.21.5

Fabric 1.21.8

Repro with just MSS and Fabric API

[Entropy159]

Having this same issue with both MSS and MVS. Some structures don't line up properly, such as the top of the volcano island or the mine. It seems to rotate part of it and it totally breaks the structure.