I haven't installed version 1.2.7 yet, but with my 1.2.6 installation FSRealistic Plus appears to have caused me to lose cockpit sounds when pausing the sim and resuming, etc. All I can confirm is that cockpit sounds seem to working normally when FSRealistic Plus is disabled (prevented from loading at startup). I wonder if SU7 changed the way FSR+ interacts with audio channels in MSFS2024 as I never had a problem with FSR+ and the A350 until SU7 was released. In any event, I hope this finding can perhaps be a starting point for others to resolve this issue.