Whenever I place a glass block next to my custom fluid (Which I have textured) my game instantly crashes, and all the worlds in which I have done this in are lost, being that I cannot open them without the game crashing.
This is the exit code when It crashes:
The game crashed whilst encountered exception while building chunk meshes
Error: java.lang.NullPointerException: Cannot invoke "net.minecraft.class_1058.method_4580(double)" because "sprite" is null
if any further information is required, please do ask.