I'm afraid I don't have a link to this one.
Many moves ago, I was terraforming a tile on my home world (Altaria) when I cashed in the extra tile ideology (benevolent top row four along), By chance this chose the tile I was in the midst of terraforming and I happened to notice since I was wondering whether my luck was in with the random(?) choice. I therefore cancelled that terraform but have no idea what would have happened if I hadn't - maybe some sort of memory crash?
Has anybody else ever experienced this. Presumably the tile being terraformed should have been removed from the list of possible choices.