The software has no sound

[Allenckp]

When I open a project and insert a music item into it, such as playing melody and clicking Edit melody, the software is in a state of suspended animation and can't operate. It takes a few minutes to respond. It can edit melody but has no sound. My operating system is win7 X64，maybe it is ,There are several sound cards on my computer, including an external USB sound card, the system's Realtek on-board sound card, a Bluetooth connected sound card, a sound card on the graphics card and four virtual sound channel cards, but the default sound card is the system's own Realtek。

ADD: I just found out that there is no volume control bar in the volume synthesizer of the system, which should have been registered by the application

[abchatra]

@Allenckp what editor are you using? Microbit or arcade?