I am also having this problem.
I didn't initially notice this because I was using the macbook Pro 14 M1 Pro with the lid open. But since I use it closed, the USB HUB of the ASD freezes a few times. I could not even understand what triggers this state.
It rarely happens to me, like 1-2 time every 2-3 days. I keep the macbook pro always on, I put it in sleep mode when not in use but always connected to the ASD.
So from the comments it seems to happen a little random.
Do you think it could depend on the internal temperatures of the ASD? it may therefore be the reason why it happens differently to each of us.
I don't know if it's coincidence but the times the ASD freezes, the temperature in my room is quite high (27-32 ° C). In my country it is summer right now.