Hi Nathan,
Thanks for your reply. Yes, your work flow on this First Import and subsequent Export Archive, Export to STP, SAT, and even Save To STL is correct and the directory always go back to \document\magic briefcase2\3D\jewelry\pendant\pendant X "THE FIRST TIME".
This morning I did the experiment on the same file that was imported, I changed material, Saved back to autodesk, tried exporting file again and found that the directory defaulted back to just \document on every export or save to operations.
So that was exactly what I was trying to say. New File Creation or old file Editing, that was already saved or exported in varies format in the computer or other computers with same account and file location (it is because \magic briefcase2\ is a Sugarsync Directory so the file location will also be syned), always defaulted to \document .. But before the Fusion 360 update or Mavericks update the directory workflow always worked. It is only after the updating it started not to work. I am not sure whether it is Mavericks that is not compatible yet or Fusion360.
However, the same file which was imported from a directory, when edited the first time, and exported back to same directory was alright. Only after the program is closed and maybe machine is closed, then program started then it did not work again and I did have to navigate back to the ...\pendant x directory in every export or save to.
I hope this reply is a little bit better on the problem. It might be a compatibility problem with Mavericks since they already went through a second small update I noticed.
Thanks for replying anyway and if my problem could not be duplicated (as usual) on your side, then it is possible that our Asian Version Mavericks might be a little different from yours. My versions are all in English by the way. I do not use Chinese Nor other language on any computers.
Thanks and have a nice weekend. It is Friday morning in Hong Kong now.
Oh by the way, I do use Fusion360 nearly everyday because I designed all our commercial retail products using this program. So I will notice any strange behaviour that might not be normal.
OK I edited this reply the third time because I think it could be the problem with Mavericks. It is because I did noticed some Sugarsync file sync problems lately with the new Mavericks. Some files did not sync like before. I also noticed Sugarsync seems to had been updating a few times recently. They updated again yesterday. Another program called CleanMyMac 2 had been updating very frequenly also ever since I updated to the new Mavericks. Even programs like Pages, Numbers, Aperture, had to be updated to Maverick version and files seems to had been coverted to a new format or structure. A notification flashed out "Your files will be updated to a new format and old program cannot open this file anymore". or something similar. Their ipad IOS7 also went thru a second update because the first update from IOS6 to IOS7 seems to have some filing problems as well. Evernote also updated a few times but their files can be read by old format.
Thanks for your patience! I appreciate that!