Lava Glitch

Hello this Is FoxxyIsMyName here,

Today, since Minecraft Caves and Cliffs part 2 just got released, I was just playing around with all of the new biome generation, caves etc... 

When I was in a cave having some lava, I went into the lava, (in creative) for a second the lava was fully transparent. I thought this might be an issue with my PC loading new chunks and lagging a lot as usual but... no I was wrong. It is actually a glitch that need to be taken care of. This glitch might have already been reported or it may even be already fixed but, im doin what I can out here!

Thanks!