最後の行で変数が--以外なら実行という条件をつけたいのですが、doesnt match --としても希望する動作になりません

Test (4)
A1: HTTP Get [ Server:Port:http://www.jma.go.jp/en/yoho/317.html Path: Attributes: Cookies: User Agent: Timeout:10 Mime Type: Output File: Trust Any Certificate:Off ]
A2: Variable Set [ Name:%http To:%HTTPD Recurse Variables:Off Do Maths:Off Append:Off ]
A3: Variable Split [ Name:%http Splitter:<th class="weather"> Delete Base:Off ]
A4: Variable Split [ Name:%http2 Splitter:<td align="right"> Delete Base:Off ]
A5: Variable Split [ Name:%http22 Splitter:% Delete Base:Off ]
A6: Variable Set [ Name:%rain1 To:%http221 Recurse Variables:Off Do Maths:Off Append:Off ] If [ %http221 !~ -- ]