The same report as MCPE-182290 and MCPE-183449 but now for the structure void.

Relates to MCPE-169612 (the root cause of all these unassigned sound property bugs).

When the structure_void block ID was flattened in 1.21.30, its new split ID was not assigned a sound property. The original structure_void entry in the blocks.json from the vanilla slice (1.13 and below) also does not include a sound property, meaning it is undefined.

This causes it to use an incorrect pitch for the breaking sound that differs from other blocks assigned the stone sound set.

To Reproduce

1. Open the blocks.json file from the Bedrock Edition 1.21.30 resources.
2. Find the structure_void entry.
3. Notice this entry is missing a "sound" property.

Expected Result

Sturcture voids are assigned the "stone" sound set. They sound identical to other stone blocks like Java Edition.

Observed Result

Structure voids are not assigned any sound set, causing them to fall back to the "normal" set. This makes them sound different from other stone blocks.