We have static IPs enabled on one of our services. That said, when we query the DB, occasionally the query will fail due to an unauthorized IP attempting to connect to the DB.

Weirdly, this is intermittent. Originally thought it was an issue with the DB provider, but after digging into logs, they shared this:
> Based on the error message and logs you shared—specifically the authentication error (code 28000)—we’ve traced the root cause to certain worker processes attempting to connect from IP addresses that aren’t currently listed in your Neon project's allowed IP addresses. This is why you’re seeing intermittent database connection errors despite most queries functioning as expected.

So it appears something is going on with Static IPs in Railway. Again, it's intermittent, so unclear exactly what the issue is.