No more sound with a Bluetooth headset at Fortnite?

Recently, Fortnite, with my Bluetooth headset, no longer has any sound. If I fix another standard device, I hear everything. I can only hear nothing with my Bluetooth headset.

So what can I do so that I can play Fortnite again with sound?

Look in the settings in the app. Vllt is there something

I also could not hear anything but speak, my guess is the Bluetooth signal from the PC is not multitasking capable, I now have a wired headset and everything works