How to remove line that cannot be parsed with `pattern`?

I have the following query to get logs of meilisearch.

{forwarder="vector"} | logfmt | __error__ = "" | kubernetes_pod_name =~ "meilisearch.*"  | line_format `{{ .message }}`

I tried to use pattern to further process break down and parse the line here:

{forwarder="vector"} | logfmt | __error__ = "" | kubernetes_pod_name =~ "meilisearch.*"  | line_format `{{ .message }}` | pattern `[<_> <log_level> <_>] <ip> "<method> <path> <protocal>" <status> <_>` | __error__ = ""

But I can still see the lines that cannot be broken down by pattern in the log. Does __error__ = "" not work with pattern?

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