"play note" block does not produce sound in develop branch and v4.0.1, but works in v3.6.18

[champierre]

Expected Behavior

Clicking "play note" should produce sounds.

Actual Behavior

Clicking "play note" does not produce sounds. Warning messages(scratch-audioengine incorrect adpcm wav header) appear in the Console tab of Developer Tools, as shown in the attached screenshot. The issue is present in both the develop branch and version 4.0.1, but not in version 3.6.18.

Steps to Reproduce

• Clone the repository and build the scratch-gui using the develop branch.
• Add the Music extension.
• Click the "play note" block.

Screenshots