It looks like you’ve been hard at work rewriting dseries for version 5 (and that this bug appears to be fixed in it), but the stable version you have posted on your site has a bug in matlab/@dseries/minus.m on line 48:
A.data = bsxfun(@minus,C.data,B);
A.data = bsxfun(@minus,B,C.data);
Is there any possibility that you can update the downloads on your site to fix this problem? Or do you have a list of known issues to reference for problems like this?