[menakite]

Edit: nitpicking: although PLL adjust works fine ("err" in codec info reaches 0.0 ms) the "pll" value is not updating. With hdmi_clock_change_limit=40 it's always 0.9996 or 1.0004 even when err:0.0.

There was a bug there. It's meant to slow down as it approaches zero error. I've pushed a fix.

Thanks, this seems fixed in last build. But now I'm experiencing the same problem I've reported months ago on newclock4 builds (I'm pretty sure it was never fixed): sometimes "Adjust PLL" is a no-op.
Test the same video multiple times, I'd say there's a ~30% chance that the start values for "err" and "pll" are still the same near the end. "Same" as in: starts with err:-23.4ms pll:0.9996, ends (40 minutes later in case of an episode) with err:-23.2 pll:0.9996.
Not sure if any setting could have an effect on this behavior.