Blackmagic Forum

Plugged in via USB 2 - C cable.
Started DVR - No sound no way of adjusting it.
Restarted DVR still the same. Unplugged Speed Editor. Restarted DVR could enable sound on clips (even had the the "DIM" option for sound. Plugged in Speed Editor - everything Ok.
I will keep on top to see if this is common or a "cosmic ray" type of issue.

You have something else going on. Speed Editor working as it should on Bluetooth here. Post your system specs so we can have a look.