Not really. They fixed putting lava in the cauldron in 20w46a but it still occurs with powder snow only.
Heads up, that's not exactly what "environment" means. I'm not exactly sure what should go there, but I think it should be along the lines of your system specifications, operating system, etc.
This was intended for the 1.9 update as a new feature.
Not really. They fixed putting lava in the cauldron in 20w46a but it still occurs with powder snow only.