Autodesk Inventor

[#1]

for the past month or so I have been having this problem with my borders in idw's. it does not happen all the time and there seems to be no pattern to it. For instance I have a job with 4 sheets in an idw. 2 of them E size and two of them D size. Sometimes when I open the idw's all the borders are E size but on the sheets that are supposed to be D all the title block info is still in the correct place?? So I have to "edit sheet" pick another size then do it again to select D size again and it is fixed. Today another interesting thing popped up, I was converting to autocad ( I have to open them again to save them down to a earlier version) on one job all the D size sheets had the E border. I went back into the Inventor idw and everything was fine?? I Have used these templates for years and never a problem.

any suggestions?

Thanks