That's interesting; the status page
https://escatter11.fullerton.edu/nfs/crunching_fs.php says there are 390 million relations, I only see 311875466 relations of which about 249650000 unique and about 180400000 survive singleton removal, and that's not then enough for a matrix. There's plenty of free space on the processing disc so I don't think that's the issue.
I don't know if this is something frmky can usefully look at; I suspect it's easier just to throw more computrons at the problem, so I've extended the range by 20MQ.