The result looks as expected. The traces are covered by the solder mask. If you want to see all of the coppers, you have the following options:
1. Simply turn off the solder mask node (1-soldermask:1 and 16-soldermask:1) from the browser.
2. Or you can change the transparency of the solder mask material.
This should not be normal I created a new post about this. We should be able to see the marks of traces on solder mask for good rendered visuals.
On other ECAD software I am using copper traces are marked(visable) on solder mask.
We were able to achive it with canvas push before recent updates.
Changing trancparency of the solder mask material causes it to be not rendered.
I request this feature to be back.