I've had 3.2.1 for a few weeks now. No issues on my side. You don't state if you have Front L/R with the Theatre or standalone, nor the size/distance for sound at 55? I have found a need (going back over the last couple of months at least) to ease-off the BL90s db and increase the Theatre Soundbar db level. (Configured C-C-C). I typically listen to Atmos movies at 40 volume - so it all comes into effect. I imagine if B&O have done anything to the soundbar, they have probably just stepped up the attenuation to make it a bit more controlled and less boomy at a given volume and given roomsense calibration and given accompanying surrounds etc..

same as below, I've had 3.2.1 for a few days now, and no volume issues on either of my Theatre setups (one is standalone, one has 50s/17s also attached). No volume issues post update on either. Watched a blu-ray (i.e 5.1) last night on my larger setup - i.e good quality signal - and volume 40 was perfect. Watching the same content now on my standalone bedroom Theatre - this time from Paramount+, which only gives a PCM 2.0 signal - and I need volume 53. Otherwise though,  when it comes to the 3.2.1 update, no changes or issues here.

Thanks for the info guys. Just watched An Atmos movie (Kodi) and the sound was perfect. Just when watching Live tv the volume decreased. Used it standalone, 65 inch LG tv.

hang on a sec - maybe I spoke too soon. Was watching some st top box tv today - and you're right, I had to crank up the volume to 59/60 to get even a normal volume! Puzzling - was fine with my blu ray watching yesterday. Hmm.

As I understood they implemented a fix for the 2.0 PCM sound not being properly upmixed. I noticed a huge difference when watching 2.0 content with this update, its sound a lot better! Before it sounded like all sound was coming from a center speaker with no bass. I also notice difference in volume I have to make for that kind of content… Can’t apply a default to it, as some content on netflix is in 2.0 en others is in dolby. So I guess they still need to fine tune the algoritm a bit.. Maybe @geoff can elaborate a bit on this.

I'll message Christian on Discord - he got to run some pct 2.0 tests yesterday

Ok, I've tested quite a lot of content this evening. I think I've figured out what they've done / what has gone wrong. Dolby True HD (5.1) content (via Bluray) is fine - nothing has gone wrong here. Atmos content (via Netflix) is fine - nothing has gone wrong here either. But the recent SW update was trying to fix some sound processing issues with Dolby Digital - the release notes say "Fixed an issue where bass was lacking in 2.0 setup, when playing Dolby Digital 5.1 content".  It was also trying to address the processing issues with PCM 2.0. And its with Dolby Digital content where things have gone wrong, and PCM 2.0 now sounds fine - essentially they've swapped one problem for another. On live Tv now, my set top box is delivering todays BBC football highlights show now at Dolby Digital 5.1 - and its sounds wrong / very quiet.    The BBC app is showing the same live show at PCM 2.0, and its sounds right - much louder. In trying to fix the two issues that were pre-existing, they';ve swapped one problem for another.  

You could be right on that. At volume set to 30 i almost get no sound. Watching Live tv.   !

can you possibly report the issue in the B&O app please? I'll do the same, and I've messaged Christian through the Discord server.