CHICAGO (AP) — The world premiere of an exhibit based on the Broadway hit “Hamilton” will be delayed three weeks in part due to recent subzero temperatures in Chicago.

“Hamilton: The Exhibition” was to premiere on Northerly Island along Lake Michigan on April 6 but producers now say it will open April 27. They blame unexpected delays in shipping, customs and a stretch of frigid weather last month when temperatures dropped to minus 23 (minus 30 Celsius).

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Producer Jeffrey Seller calls the delays “frustrating, but all solvable.”

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The exhibit focuses on the life and times of Alexander Hamilton with the musical’s creator, Lin-Manuel Miranda, as the audio guide. It’s to remain in Chicago through Sept. 8 before traveling to other U.S. cities.

“Hamilton” the musical has been playing in Chicago since September 2016.

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