I wanted to use the transportation system from the 'Resort Area' to travel to 'Canalave', so I went downstairs to the 'Transmat Station Sinnoh' in that Pokecenter. Realizing I'd forgotten to change my Pokémon, I tried to return to the PC before paying for the ride (i don't have train ticket). But when I exited (up stairs), I was now in 'Solaceon' instead of the 'Resort Area'. I realized it was the same place I'd paid for the last ride.
This had happened to me before, but I thought it was just my lag and my bad conecttion in that occation.
I hope this report can help fix this little problem, can test it and fix it to avoid misuse.
[I have used a translator, if something is not understood, please let me know]