APEndpointAggregate-SM-[0xD0AD]

Hello,

I have two homepods mini that I use with both my Macbook Pro 2016 and iPhone XS.

Since right now, I have a very strange problem when trying to use them with my MBP... It plays like one second and then switch directly to the built-in speakers and in the output, I see APEndpointAggregate-SM-[0xD0AD] appearing and then disappearing...

Weird thing is that with my iPhone XS, there is no problem, and one hour ago I had no problem at all...

What is that now... I try restarting the homepods and the MBP, but it doesn't work still...

Any idea?