By "Main Mission" do you mean the one "The Grand Acquisitions Race"? Because I can't reset "Rakata Eating Utensils". Also, if I reset "The Grand Acquisitions Race" will I lose all progress made on other bonus missions?
If you reset your main Mission you should be able to reacquire this bonus objective. As DiomedSolo has stated, you won't lose any of the previously acquired items. If you still cannot complete the mission, please can you try running a repair and attempting the step again.
If you have submitted a ticket, we will be in contact with you as soon as we are able.
Thanks for you patience.