Locating a phrase's token range runs the text encoder once per phrase — on H3
that is the same multi-billion-parameter encoder the prompt goes through, up
to eight times. The ranges exist only to feed the attn2 direction patch, and
H3 has no cross-attention for it to hook, so the patch declined on the very
next line and the results were dropped.
The same question is now asked before the work instead of after it. LTX is
unaffected: it reads attn2, so the ranges are still computed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>