Worker doesn't get triggered on Routes, but works on Custom Domain

Hey! I've been trying to solve this issue with a worker not being triggered when being added to a route (i.e. www.example.com or hello.example.com), but it is being triggered on a custom subdomain. In the attached screenshots, you can hopefully see all the relevant info. As expected, the trigger on workers.dev subdomain works, but nothing works on example.com. Also, the test.example.com custom domain works as expected. Could you please let me know what I'm doing wrong? Thanks a lot!