BUG - Audio Glitch in h264 outputs

Hello

Currently using 12.5b3
and 10.11.5 osx
all drivers up to date

Every time I output an h264 from Resolve
I get a single frame of audio noise
in the first frame of the output

the result is an audible "Click" at the start of every file..
which is heard no matter what software I use to play back (QT, vlc, etc)

not getting it with other codecs (prores is fine)
not in the timeline (only hear it in the output file)
nor anywhere else..

seems like a math error in the audio processing for the "zero" frame of audio...
and was also present in 12.5b2
I was hoping it would go away in b3 but no luck...



thanks

WH