In co-fold mode, first two nt of second molecule are truncated

[jwintersinger]

Hello! Fornac seems to have a persistent issue whereby, in co-fold mode, the first two nt of the second molecule provided are truncated. For instance. in the examples/multi-strand.html case, which uses the sequences abcd&efghijklmnopq, the e and f nucleotides are missing.

I see the same behaviour using the Fornac version in the repo's dist/ directory, as well as the version used in the hosted Forna instance (which seems to date to Nov. 2016). The issue occurs in both Firefox and Chrome.

I see the same problem with the sequences in the co-fold example, where the 5'-most AC of the second sequence aren't rendered. Interestingly, this issue does not seem to be present in the screenshot provided.

Please let me know if I'm doing something wrong. Thank you!

[Lucandia]

I am also facing this issue. In my case, Forna cofold structures are fine when using the structure in the README image, but it doesn't work for the sequence in examples/multi-strand.html and custom sequences