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1. Minecraft version: 1.12.2
2. Galacticraft version: 4.0.7
3. GalaxySpace version: 2.1.5
4. AsmodeusCore version (for 2.0.1 version and above): 1.0.3
5. Side (Single player (SSP), Multiplayer (SMP), or SSP opened to LAN (LAN)):
6. Other add-ons:

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Description of the issue:

If you install Galaxy Space fresh and visit Proxima B, you'll notice that occasionally, between biomes, grass and tree structures create rigid boundaries. For example, look at Figures 1-5. I drew blue lines to indicate rigid grass/tree boundaries, suggesting that flora in these areas doesn't generate as shown in Figures 1-3. Figures 4-5 give you additional examples. NOTE: THIS ISSUE ALSO OCCURS ON BARNARDA C. I MADE A SEPARATE ISSUE ABOUT THIS.

Proxima B also has very slow, occasional glitchy chunk loading/generation for the player. Please observe Figures 6-8, where you see through the dimensions and chunks not loading at all. If you were to explore Proxima B, it is jarring as you run into invisible chunks.

Occasional cascading worldgen lag in Proxima B dimension, probably caused by NBT structures on the planet shown in Figure 9.

Screenshot/Video:

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

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Attached log file (or url on pastebin.com):

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