Reinforced Deepslate can fail to generate completely

Summary:

The heart of the Ancient city can have missing blocks of Reinforced Deepslate.

Steps to Reproduce:

1. Create a world with seed 4522402648622798733

2. Teleport to 924 -22 996

3. Observe the "Portal"/heart of the Ancient city

Observed Results:

Some blocks of Reinforced Deepslate are missing from the structure.

Expected Results:

No blocks of Reinforced Deepslate would be missing.

Image: