How to reproduce
1. Use a lava bucket on the ground
→ ✔ Lava sound
2. Use a lava bucket on a cauldron
→ ❌ Water sound
Linked issues
is duplicated by 7
MC-203609
Lava Cauldron Sound Is Incorrect
Resolved
MC-203693
When filling and emptying cauldrons, the water sound is always played regardless of whether the cauldron is being filled with lava or water
Resolved
MC-203781
Placing Lava in a cauldron plays the same sound as water
Resolved
MC-204008
Wrong sound
Resolved
MC-204356
When you pour lava into the cauldron, the sound is still the sound of pouring water
Resolved
2 more links
Can confirm. Added attachment.