Hello, I have a very odd problem. I have a file that for some reason just some of the parts will not match in dimension. I will measure a specific set of lines and it will show 4". Then I will draw an object that is 4" long and try to snap the object to the first 4" object. There is a very noticeable difference in size of the two objects and if I try to measure the distance it tells me that the distance is 0". I will include photos to show you exactly what I mean. Oddly enough it is only parts of the drawing that does this. Two gussets in particular and the orthographic side view of the gussets. Any help on how to fix this issue would be great. I have no idea how this even happens. Also I have many drawings using the same template and have never had this problem.

You'll have to either upload the drawing to this site or upload it to a file sharing website like Dropbox and post a link to it so someone here can have a look at it.