Blay Waystone will block the structure placement in some condition https://github.com/celsiusqc/TowersOfTheWildModded/issues/17#issuecomment-2191305831
This mod powered by Lithostitched and Patched.
Which means the waystone injection is data-driven. You can modify the weight, count by datapack.
In addition, you can decide which template pool to inject into instead of all the "/houses"(hard-coded). Only the vanilla villages are confirmed to use this suffix, other villages added in the pack are free to choose the name they want to use.
Report issue to me instead of the original project if you installed this mod and facing the structure generation problem.
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