2011 Sonata Limited Engine Light

Hoping someone can help. Engine light came on 3 weeks ago. Bank 1 misfire. had the 4 plugs and bank 1 coil replaced. 1 week later same code came up. Replaced coil again. 1 week later and the light came on with the same bank 1 misfire. It's not running rough but is kind of annoying. Anyone with the same problem or ideas?