Audio cracking and muting issues (8.6.2)

Hello everyone,

Just updated to 8.6.2 (from 8.5.7) and ran into an audio porblem :

The sound quickly starts to crack a lot until it gets silent. A few seconds later it suddenly reappears just to disappear again the same way etc... I have the feeling that it might be an external problem to Max (like a clock issue or something) because even when the sound is lost, the meters keep on modulating fine. Still, it was working normally under 8.5.7 and just appears when I updated to 8.6.2.

Here's what I've done to track the issue:

• Checked with 2 different virtual soundcards: Loopback & Blackhole.

• Trashed Max preferences.

• Updated macos (from 12.7.3 to 12.7.4 - Monterey's latest).

• Run maintenance scripts (from Onyx).

• Checked and repaired my system HD using Disk Utility.

Nothing of the above has fixed the issue.

My installed packages :

• ease

• ejies

• HISStools

• ICST Ambisonics

• Jasch Objects

• link

• miraweb

• odot

• spat5

My patch under dev. uses HISStools / ICST AMbisonics / Jacsh Objects / odot and a lots of code in Java (no audio in Java).

CPU is around 15%

Hardware is Macbook pro 13" apple Silicon M1 connected to an old DENON Home-Cinema Surround Decoder (7.1) through HMDI. Was working fine until this update!

If anyone could help me to troubleshoot this issue that would be great, otherwise I will sadly have to roll back to 8.5.7 ... again T_T

Thanks for your help

UPDATE: Rolled back to 8.5.7 and that sloved the issue!! There is definitely something wrong with 8.6.x That was my second try at updating Max to 8.6 and I end up rolling back again. I'll keep on trying but for the moment I'll stick with 8.5.7 ^^'