So, you spawned where there was no longer a physical portal constructed, or was it another 'unnamed' portal?? I've done something similar, forgot I had a unnamed portal at a location and now, I can't use the 'quick' method for returns. I have to think it out clearly and create the new 'return' portal with the name. IE< I've stopped using that method, I plan out and name everything before I explore, including landing the Map Icon with the proper name...easy to fix, bring mats for new 'unnamed' portal, but....m'eh, it's just that 'mystery' portal I visit from time to time...