I just posted this in the Premiere Pro Forum; it's relevant to the Beta program because the current Beta fixes the issue, So, if you're interested:
https://community.adobe.com/t5/premiere-pro-bugs/multi-cam-audio-audible-not-audible-depending-on-tr...
Cheers,
Dan
Dan Monro
DMONRO, LLC
Mac Studio (2023) M2 Max, 64gRAM, Currently running Ventura 13.7.2, Premiere 25.1.0 (73) & Beta 25.2.0 (68)
MacbookPro (16-inch,2021) M1 Max, 64gRAM - Currently running Sonoma 14.6.1, Premiere 24.4 (62) & Premiere 25.1.0 (73)
iMacPro (2017) 3ghz 10-core Intel Xeon W, 64gRAM, Radeon Pro Vega 64 16g - Currently running Ventura 13.6.1 Premiere 23, 24 & 25 & Media Composer 2023.3.1
Homemade PC IntelCore i9 3.6ghz, 64gRAM, NVIDIA GeForce RTX 2080 Super - Currently running Windows 10 Pro 2004 & MC 2020.12