SF Universe reports that Jensen Ackles and Jared Padalecki autograph signing, which was scheduled for Saturday,July 26 at 5:00 p.m. has been cancelled due to production and travel issues. According to the report, Ackles will be joining the Producers’ Autograph Signing on Sunday, July 27 at 12:30 p.m. in the WB Booth (#4329 – Hall E). Padalecki, who will be part of the Friday the 13th panel (Sunday, July 27 at 1:00-1:30, Ballroom 20), will not be able to participate in any autograph signing at Comic Con this year.
Source: SF Universe.