A bug was reported by a couple of players, where they couldn't get past a certain date in the game, and it was related to having two gigs booked on the same date, which should never happen. It confused the game into knowing what gig to do on that date. This always happens with one of the dates being a tour gig.
The update fixes the double-booked date by discarding the non-tour gig date and keeping the tour gig when loading the game. Also, a fix was put in the avoid the double-bookings in the future.
Here's how I think it was happening...
1. You have your manager set to book a tour.
2. NPC bands start booking their gigs. While doing this they also look to see if the player's band would fit into the gig as an opening slot. This will only happen if the player's band doesn't yet have a gig on the same date. If everything looks good, schedule a phone call to ask the player if he wants the gig.
3. The manager books tour gigs. However, one of these tour gig dates is the same date that the phone call from #2 is on.
4. The player gets the phone call inviting them to the gig, because when the phone call was scheduled, the date was free, but now it's not. The player clicks Yes and the double-booking happens.
Thanks to everyone that has bought the game already, and thank you very much for your patience with any bugs you encounter. I can usually fix the bug if I get the save game files that are affected, such as in this case.