When throwing an item into a lava source block under raining weather, it won’t make a sizzling sound

When I discard an item I don’t need into a lava source under raining weather, it doesn’t make an sizzling sound

 

Steps to Reproduce:

1: Open an Minecraft world in Creative

2: Place a lava source block 

3: Change the weather to rain

4: Grab an item you don’t need and discard it