Originally Posted by
cadtag
make a copy of the drawing to work with first. then, in the copy run AUDIT. If that fixes it, great, if not, delete the first 50 layouts, save to a new name, and see if that file works properly. If not, make anew copy of your original file, and delete the _last_ 50 layouts. Does that work?
For a variety of reasons, having 55 sheets in a single dwg file is probably not the best work process. I will sometimes go as far as a dozen layouts, but that's kinda rare. It's usually better to have multiple DWG and use Xrefs to create the sheets you'll be plotting