I am making circular map with BRIG where I use multi-fasta file as a reference and 33 draft genomes as queries. The problem is that I dont get rings for almost half of the queries, though BRIG doesn't give any error message. I can also see that blast tables are created for all the genomes. Only thing I noticed that mergeflip was not done for the failed rings. If anyone had same problem and could suggest the solution that would be very helpful! Thanks