Hi,
Since the problem didn't exist on cylinder 5 before, I suspect you either got a bad ignition coil, the connector is loose, or the pins are pushed in and not making good contact.
I attached a pic below showing cylinder 5. Disconnect the coil and inspect the pins inside the connector. Also, make sure by accident you didn't bump the wiring to the cylinder 5 fuel injector. If everything checks good, return the new coil and get it replaced under warranty.
Let me know what you find.
Joe
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Tuesday, December 8th, 2020 AT 6:16 PM