A security issue prevented Mexican fans from seeing the conclusion of last night's Knotfest in Mexico City (November 30th.) The stage barricade broke during Behemoth's set and it was impossible to fix in time for the final two acts of the night, Slipknotand Evanescence.
Slipknot offered this statement to understandably upset fans:
“Due to unforeseen circumstances, Slipknot were not able to perform at last night’s Knotfest. Security barricades became an issue, and it was decided that for the safety of the fans, neither Slipknot or special guests Evanescence could take the stage.