No sound on USB multi-output interface

Hi,

using Audacity 3.5.1. Since version 3.x I don’t have any output on my Behringer UMC1820. The interface works fine in my DAW. It has multiple outputs, but the headphones out is also dead. It is not an volume issue, volume is on full …
Output to my HDMI monitor does work.
What is peculiar is that sometimes (not always), the play through of a wave file stops after a couple of seconds.
I should also mention I have 2 of such interfaces but while testing I try them both.
These are the properties of one:
Device ID: 7
Device name: UMC1820
Host name: Core Audio
Recording channels: 10
Playback channels: 12
Low Recording Latency: 0.01
Low Playback Latency: 0.00435417
High Recording Latency: 0.1
High Playback Latency: 0.0883542
Supported Rates:
8000
9600
11025
12000
15000
16000
22050
24000
32000
44100
48000
88200
96000
176400
192000
352800
384000

Any suggestions?

Cheers,

BC

Too bad there’s no engagement in this topic, I must not be the only one.
I’m using an alternative editor for the time being but it would be good to be able to return back to Audacity.

Cheers,
BC

I installed 3.6 today, still the same issue.
I’m wondering if Audacity is not sending out the audio to non-default outputs, but I should be still able to hear that through my headphones.