Kyle,
Thank you for sending in your files. That definitely helped us understand what was really going on here.
To make sure we are all on the same page with what was really going on, I will say it has everything to do with your blocks and that they were full of attributes. This should be of comfort to know that now since you are using Land F/X, you will not need this type of set up as you can now properly label you blocks, and list these types of attributes in a more organizes and quick fashion.
What we were able to do to help with the issue at hand (Match Properties not converting the non Land F/X symbols) was to increase the Match Properties functionality by allowing the tool to remove completely the attributes from the destination block. We plan on releasing this feature in the next update tomorrow so please keep an eye out for this. I will also update you via your tech support ticket so you know when this is released.
The other thing I did notice when going through this plan was the fact that you had a dview twist set to the drawing. I have provided a link below that goes over how to use our UCS tool instead of using dview twists as it is more appropriate to use UCS rather than the dview setting. Please let us know how else we can assist you and we can go from there.
Creating a UCS