The problem is the Default Value evaluates correctly every time, but when it evaluates to the "FILLED" default that doesn't show up at all in the dropdown. When I click in the Default value field I see the dropdown saying it evaluates to FILLED, but the actual select just shows the Placeholder.
If I go into the Default value equation and do anything, even just adding a space, then it displays the correct value in the Select, so it's just not loading the default values into the display on page load for some reason.
Spoke with support and ends up this is a bug where if you reference a query that is disabled in a JS script, then the result won't display as the default (even if the point of that JS script is to check if the query ran and display a default value if not). The script will evaluate correctly, but it won't display the result in the actual component. Bug fix request has been added to their queue.
Hi @aharwood, we pushed an update that potentially fixes this issue! Just want to check back in here and make sure your app is now functioning properly.
My mistake! I associated this case with a similar issue that had been fixed but it looks like your specific case is still being looked into. I'll post again when there's an update on that - sorry for the confusion.
Hi @Solax3D Thanks for checking in! Can you share some screenshots of your setup? I don't see that this bug has been marked complete internally, but I'm no longer able to reproduce this issue in my account Hopefully, that means we can sort out a solution for you
I am also encountering this issue. I have a very simple setup of a select component with a default value of table1.selectedRow.status and the value won't display.
Hopefully, that means we can sort out a solution for you 
I'm not able to reproduce this for our team to investigate. Any chance you can share an app export?