Doing some testing here and in the build I found that there was no rear wheel option. Also noticed that on the dropper post section know one up option was offered even though a one up option is offered in the chain ring section.
Can you send me the link to the part list? That will help us know what could be causing the compatibility issue. Another way to troubleshoot is to uncheck the "Compatibility Filter" checkbox. Then you will see all the available rear wheels we have in our database. Choosing one of those will then show what the compatibility issue is.
I'd like to see the build list though, so I can try and work through it on our end.
We don't currently have any super boost wheels in our database. We'll fix that. We also don't currently have any OneUp dropper posts in our database and we'll add that to the to-do list as well.