I have created following product attributes.
Color - Type - Drop-down
Black, Blue, White
Bed Type - Type - Drop-down
And used these attributes to create a configurable product. But on the product page, option values are missing. It is just showing "Choose an option".
I tried following cases
- Tried Changing both of the Attribute types from "Drop-down" to "Swatch" it started showing the values.
- Again changed the type from "swatches" to "Drop-down", option values are not showing.
- Tried setting one attribute to "Drop-Down" and another one to "Swatch", both are showing option values.
So the issue is when we set both of the attributes to "Drop-down" it doesn't work.
I tried clearing cache and re-indexing but didn't get any success.
Looks like your configuration option have missing columns called QTY and PRICE and that is why its not showing on product details page !
Meaning when you are creating configuration option from configurable product - make sure you adde Quantity and Price in each and every column
then check it will shows on dropdown - i have done same thing on magento 2.2.4 fresh version and its working at my end !