This is a bit annoying.

I too have this issue, on further investigation it seems to be happening on the 8th block in my chunks and it runs on both the z and x axis. In the image below I aligned myself on the z axis slice from the house on the left. (no other mods installed)

this also appears to happen on block 0 in slices going both directions in structures found in the wild. typically from what I have observed, they usually run north-south or east-west but not both when a given structure spawns.

This pic from my own pack has the same issue, just a larger structure (StatueTemple) with 3 of these slices

Also getting Structures cut. on 1.10.2

I have the same issue in 1.11.2 with version 1.4! (frequently seen this problem in one of my selfmade structures)

I am also experiencing this issue. Let me know if I can provide any more data to help troubleshoot.

Java:1.8.0_121
MC: 1.11.2
Forge: 13.20.0.2313
Recurrent Complex: 1.4

Confirming that this is happening on MC1.11.2 with ver 1.4, here are more pics confirming that it happens on the 8th block of a chunk and on both axes.

I'm getting this too. 1.3.2 seems to be the latest 1.10.2 version that doesn't have this issue.

1.11.2 Forge 13.20.0.2300 RecurrentComplex-1.4

Same issue

1.4.2 is out now with the fix. Let me know if it reappears.

Got rid of the gaps in the structure when I deleted the region and rentered to load it fresh. But, this ugliness is still there:

But worse:

That should be fixed in 1.4.3.1 :)

From the changelog:

• If generation and transformer IDs are missing, consistently randomize them across loads. This fixes structures sometimes spawning with negative space blocks in the world

If it still happens there please let me know.

It is 1.4.3.1, I just updated, deleted the regions, went abck to see how they reloaded, and the screens are what I found. Restored the old regions and found this again, as it was before the updated release:

Yes, this will only work for newly generated structures (as in, not only delete the region files, but also the reccomplex-structuredata.dat files).

Now I get it. I'll try deleting both when I can play again. Thanks for your patience.

I've wandered about the world, both into regions that were deleted and new ones. No gaps in the structures, and no placeholders or open spaces below ground level. I would say that, at this point, it is fixed. Thanks!