Describe the bug
Landing on Astros, approaching the ice, and seeing cave systems on the moon through ice,

Expected behavior
Unable to see through the ice, which also impacts the perfomance

Screenshots
https://cdn.discordapp.com/attachments/737202405959139350/944872730115866644/unknown.png
https://cdn.discordapp.com/attachments/737202405959139350/944872974199185408/unknown.png

Minecraft and PC Information (please complete the following information):

• Minecraft Version: 1.12.2
• Mod Version: 2.0.38
• RAM Allocated: 5GB

Additional context
Zollern Galaxy might eating good chunk of RAM (need verification, didn't check in details)

Also dropped blocks on Astros appear semitransparent

The ice will be fixed in the next version.