The encoder settings are fairly standard for bluray production:
Code:
--bitrate 33000 --preset veryslow --tune film --bframes 2 --bluray-compat --vbv-maxrate 38000 --vbv-bufsize 30000 --level 4.1 --no-fast-pskip --no-dct-decimate
--keyint 24 --open-gop --slices 4 --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1
The problem is the same on both 1-pass CRF or 2-pass.