Hm, I'm absolutely sure this has something to do with the new shortcut system*, although I tested it before under all known configurations and it seemed to work fine :/ (*although strangely I don't see mention of it in the log, so perhaps somehow the shortcut elsewhere messed with a normal exit...)
To investigate I'll need the score sheet for this run, from which I can rerun the seed and follow your route to try to keep other variables the same.
A related question: You found the/an other exit okay, right?