The rental is on 0.34.0, whose comfy.ldm.minimax.model has no time_shift_slope
— that function is newer than stable. It came in through the same all-or-
nothing import as the classes the lane cannot exist without, so one absent name
raised ImportError and make_causal reported "this ComfyUI has no MiniMax H3 to
extend". Which then read as a broken install, and before that as a switch the
user had not flipped. They had.
The import is now split. The classes and helpers with no substitute stay hard,
so a genuinely too-old ComfyUI is still named precisely by the ImportError.
The ones that arrived later are read with getattr and fall back to what THAT
ComfyUI's own dense forward does.
For time_shift_slope that means not scaling the audio velocity at all: 0.34.0's
_forward returns `-audio_out` unscaled (verified against the tagged source), so
applying the correction here would put the chunked lane on a different audio
grid than the dense path on the same install. Where the function exists, it is
applied exactly as before.
Tests: 1804 python, 68 JS. The upstream check now deletes time_shift_slope and
drives a chunk through the lane without it.
digital-garbage
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