Blog Post is 404, But Post Lists Are Working

Not sure what I missed, but my blog has a slug setup in SETTINGS as: /newsroom/{postSlug}

I'm displaying articles with perch_blog_custom just fine. But when clicking into an article, I get a 404. The URL looks correct. I tried switching the slug, but no luck. Can anyone help see what I'm missing?

Sorry, this is Runway 3.15 latest.

Hi JordinB - I just realized now it was related, sort of. When you mentioned the Routes, I went back at checked the "Post" page and sure enough, I had the wrong routes, since the old name, 'community', was changed to 'newsroom'. I switched them and and boom, working! Thank you for mentioning that!

Now if I could only get those paths right on the Category page.....