Okay, just kidding, I clicked it about a hundred times and it eventually moved forward. But my gosh it took a lot of clicks.
Hmm, this kind of thing often happens if there's an unhandled crash - if this happens, can you exit the game and upload the output_log.txt file somewhere? It will be in the same location as the save data but it gets wiped every time the game restarts so it's only good if the error happened in your last play session. Uploading the save would be useful as well if it's something that happens every time you try to go there.