`sam3.1_multiplex.pt` has zero `build_*` path that loads cleanly on public `main`

#7
by navinram - opened

Github issue filed here:
https://github.com/facebookresearch/sam3/issues/526

sam3.1_multiplex.pt checkpoint appears to have been trained against an internal Meta branch of sam3 that uses:

  • inner-module renames (interactive_sam_mask_decoder, interactive_convs, propagation_convs)
  • flattened attention parameter names (self_attn_q_proj vs dotted self_attn.q_proj)
  • additional modules that don't exist on public main (maskmem_tpos_enc, interactivity_no_mem_embed, etc.)

Please close this discussion if it is being handled in github.
Thank you for all your help.

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