Originally Posted by BrianWBrazil

Here's one:

I have a flight booked GIG-LHR-GIG in December. I have just changed the return leg to a later date and the system automatically selected the same held seats on the new flight some 10 days later. However, the seats on the unaffected/unchanged outbound flight were somehow moved to a random part of the cabin. I had to go into MMB to re-select the seats that I had held previously.