Multirange bug?

Seems to me that the multi range object has some issues, When I use it in a poly~ some instances appear as they were in the original poly patch, others just show a lot of break point dots at the very left side of the objet. Same goes if I try to create a pattr situation. Storing a multirange and then recalling it gives the same annoying result...
I have invested quite some time in a project using multirange before I tried it in "real life" so I am am indeed a bit concerned...