What is WHAT - Fluid Fix

Time for technical details. The Forge fluid registry contains an annoying bug: when loading a world, the default fluid may change, while only one standard Forge bucket is baked and only one fluid texture is stitched into the texture atlas. This leads to the appearance of black and purple "phantom textures" in fluid tanks when two different mods load identical substances (steam, oil, molten metals, etc.).

This modification does not eliminate the discrepancy between the default fluid in the world and the one loaded by default; instead, it stitches ALL fluid textures to ensure the correct image display even when the world's standard fluid does not match the one loaded by default.

The solution works for the vast majority of mods that do not cache their own fluid textures for visualization. These include Embers and projects authored by LordMau5.

In short: if you have two mods installed that add the same fluid (for example, oil), you will no longer have problems with black and purple textures appearing.