Sometimes story text compilation errors will either report no sourcepos at all, a sourcepos of (0,0), or a sourcepos that looks correct but turns out to be inaccurate.
I haven't done much investigation of this yet but what I've seen so far suggests Commonmark isn't always setting the sourcepos so it may actually be their bug, not ours...? More research is needed.
Sometimes story text compilation errors will either report no sourcepos at all, a sourcepos of (0,0), or a sourcepos that looks correct but turns out to be inaccurate.
I haven't done much investigation of this yet but what I've seen so far suggests Commonmark isn't always setting the sourcepos so it may actually be their bug, not ours...? More research is needed.