Weird search results

Performed a test search for "salt lake city": https://api.syncad.com/hivesense-api/posts/search?q=salt+lake+city&truncate=0&result_limit=20&full_posts=20

I got this in the response:

Seems way off.

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Now the interesting part. If I do a new search 30 secs later: https://api.syncad.com/hivesense-api/posts/search?q=salt+lake+city&truncate=0&result_limit=20&full_posts=20

I get completely different results:

But this time the results include a bunch of "muted" posts.