Many people use the GREMLIN server for predicted contacts, which are output in a tabular format with a header line (example: http://openseq.org/sub_txt.php?id=1476807290).

Foldit can *almost* load this file, but requires two small revisions in the header line: You have to prefix the line with '##' and change the column name 'prob' to 'weight'. Is it possible to add support for parsing the raw GREMLIN output?

Foldit requires that you use the C-term VRT residue as the anchor residue in symmetry. Right now, this requires manually editing a .sym file every time you load a symmetric pose of a different size. If Foldit could just set the anchor residue automatically, behind the scenes, then users could use the symmetry definition files straight out of the Rosetta database.

Big inconvenience for anyone who wants to use the standalone more than once. Sometimes manifests as a "number of residues" mismatch, or "missing params file" error. Usually just crashes.

In sessions created from a FASTA file, the "Save Session" button appears to write an .ir_session file, but FolditStandalone later crashes when trying to load this session.

If you start a session with a FASTA file instead of a PDB, the session does not allow design, residue insertions, etc.

XML formatting errors are extremely common when editing RosettaScripts—especially among the non-programmers who are most likely to use the standalone. It would be great if we could catch some of the more common parsing exceptions (e.g. mismatched tags, tag does not exist), instead of crashing.