AutoCad :: Plotting Veiwport With Hidden Lines Works But When Go To Reprint They Are Solid

I'm laying out a drawing. I use a visual style with facet edges and occluded edges dashed and intersection edges dashed. To give my lines hidden fo fabricators to know witch way to face angle iron and so on. But here is the big problem i do a veiw port with 4 shots 1 isometric solid 1 top hidden lines front hidden lines and right hidden lines. so first time i plot it, it will work fine then i go back to plot then the lines ither become not shown at all or they will be solid. even know the veiwport still shows them as hidden lines. If I delete the veiwport and make a new veiport all over again it will work for a single print then will not show it all over again.