Filebeat Multiline problem with Logstash

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I found the error, there are some messing parenthesis
with this configuration in filebeat everything working as expected

filebeat.prospectors:
- input_type: log
  paths:
    - /var/log/jenkins/jenkins.log
  exclude_files: [".gz$"]
  multiline:
    pattern: "^(?:[Jj]an(?:uary|uar)?|[Ff]eb(?:ruary|ruar)?|[Mm](?:a|ä)?r(?:ch|z)?|[Aa]pr(?:il)?[Mm]a(?:y|i)?|[Jj]un(?:e|i)?|[Jj]ul(?:y)?|[Aaa]ug(?:ust)?|[Ss]ep(?:tember)?|[Oo](?:c|k)?t(?:ober)?|[Nn]ov(?:ember)?|[Dd]e(?:c|z)(?:ember)?)"
    negate: true
    match: after
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