Reference level overrides is off (SS4)

I have a file that is referenced into another file. Both files are "models". The first file is a base file and the second file is a sheet that I just trim out the lines within a border. I have some lines drawn in the base file that are dashed lines, but in this particular sheet I want those lines to look solid. in the sheet file, I select the level in the base file in level manager and change the style to solid, but it won't save it that way. I also have other "sheet's" that I'm able to override that linestyle. I've tried the key-ins that were suggested here, and I've tried "repairing the file" but no luck. any new suggestions?