ISSUES NOT USING OUR TEMPLATE WILL NOT BE CONSIDERED AND WILL BE CLOSED!

Describe the bug
Bedrock is missing from the nether roof and floor

To Reproduce
Steps to reproduce the behavior:

1. go to the nether roof or floor

Expected behavior
there should be a nether roof and floor of bedrock

Screenshots

Info (please complete the following information):

• Modpack Version: 2.77.1
• Server or Singleplayer: Singleplayer
• Version the world was created on: 2.77.1

Additional context
Probably related to dimstack

duplicate of https://github.com/CalaMariGold/Rebirth-Of-The-Night/issues/220