OK, me again, with yet another question. :)

I've got a structure I want to have autogenerate as a bastion_remnant structure, but in the overworld. That part's easy.

But the structure is too big to capture with a single structure block.

I thought about using jigsaw blocks, but I'll be damned if I can get them to work at all, and from what I can find online, I'm not even sure they work right now for custom builds, anyway.

So I opted to use observers to create a set of nested structure blocks.

When I just place a structure block and use it to load the first stage of the build manually, the whole thing loads beautifully. But when I try to place it as a structure to spawn automatically, only the first stage loads, and the command block and observer that should have triggered the second stage are instead just sitting in the world doing nothing.

Any ideas/suggestions what I might be missing or why it fails to autogenerate properly?