Why is only one shipping rate option showing at checkout?

[sabtsmith]

Although I have multiple shipping rate options enabled (1st screenshot), only one is available to select during checkout (2nd screenshot). How do fix this? Thanks!

[sabtsmith · Accepted solution]

Jenna from Shopify solved this for me. I had set up my default packaging using USPS Priority boxes. Her recommendation was to use a custom box instead. That worked!