Custom atmega32u4 board crystal issue
That's a Crystal Oscillator, not a crystal. Take the 22pF caps off to start.

Did you set the fuses to use an external clock source, vs a crystal with the internal oscillator driver (where the caps would be needed)?

Is the part oriented the correct way so it receives power and Gnd correctly?

Also, is it's performance any better than if you had just used a crytal?  

https://support.epson.biz/td/api/doc_check.php?dl=brief_SG7050CAN&amp;lang=en

vs these with +/- 10ppm stability (is that the same +/- 10 x 10 ^ -6 ?, which would b be better than 25 to 100 x 10 ^ -6)
https://www.digikey.com/products/en/crystals-oscillators-resonators/crystals/171?k=crystal&amp;k=&amp;pkeyword=crystal&amp;pv1989=0&amp;pv183=6185&amp;pv2150=u16MHz&amp;pv253=19&amp;FV=ffe000ab&amp;quantity=0&amp;ColumnSort=0&amp;page=1&amp;stock=1&amp;pageSize=25