Question on intended bin definitions for L2D Loss in RFDiffusion

I’m working with RFDiffusion and have been comparing the L2D loss described in the Supplementary Information against how it’s computed in RosettaFold2’s publicly available code (for example, in c6d_to_bins2). I noticed that, although both use 37 bins for distances and dihedrals, the supplement defines equal-width bins over 0–18.5 Å (or 2π/37 for angles), whereas the code uses DMIN = 2 Å, DMAX = 20 Å split into 36 uniform bins plus a catch-all bin. The RFDiffusion code‑base uses those same DMIN/DMAX and bin counts, so I wondered if the Supplementary Information might contain a typo. Could you please confirm which scheme is the intended one?

Thank you very much for your time and for sharing your work.

Start by comparing the Supplementary Information with the publicly available RosettaFold2 c6d_to_bins2 implementation and the RFdiffusion code's DMIN/DMAX settings and bin counts. Done means documenting which binning scheme is intended and confirming whether the Supplementary Information contains a typo.