Few more reports:
1. Overwrite input scan type menu, QTGMC setting "Order: 1 or 0" and "bob" settings works well together now. No problem anymore.
2. I was able to fix x265 binary with your install_name_tool codes (Seems it was a space in path that produce error when i attempt to launch it before, so i changed "linux/8bit /Applications/" to "linux/8bit/Applications/")
Now when i launch x265 binary in Terminal It gives me this:
/Applications/Hybrid.app/Contents/MacOS/x265
x265 [error]: No input file. Run x265 --help for a list of options.
By the way, i see same "No input file" message when launch x264 binary. Hope it is fixed now.
Still see "Jumping/strobing" frames effect during playback in QuickLook or QuickTime X Player, when video was rendered to MP4 x265 with enabled B-Frames with "FFmpeg instead of MP4Box".
3. For my opinion there is a small confusion with "Sharpness" setting in QTGMC.
If i uncheck "Sharpness" checkbox, it still use value 1.0.
I know that Sharpness 1.0 is default used in script, but all other filters use value 0.0 when they are unchecked, so i guess people expect "Sharpness" 0.0 when it is unchecked.