When I traveled to the Nether, the lavafalls are untextured. The still lava at the bottom of the world is correct, but the animation has been broken.
MC-147882
Broken Lava Textures
Resolved
Invalid
0
Alyssa Johnson-Lea
(Unassigned)
Unconfirmed
Minecraft 1.14 Pre-Release 1
Retrieved
You're using an texture pack, most likely outdated for the latest snapshot/pre release(s). Contact the texture pack maker.