ARGweaver "Assertion `0' failed" error

[AndreMonc]

Hi, I have successfully run the function arg-sample on 63 out of 64 genomic windows (2 MB windows of a single chromosome). For some reason, I have a stubborn window that will not run (despite being created in the same way as the other 63 genomic windows). I get the following error line :

arg-sample: src/argweaver/sequences.h:592: int argweaver::SitesMapping::compress(int, int, int) const: Assertion `0' failed.

Any idea what this error might refer to? I can't find anything unusual about this particular window.

Thank you! Andre Postdoc at Louisiana State University