I have set up the plugin for a multibranch pipeline. But the pull request comments are not triggering the build.
I was checking the plugin code.

There is a regex variable pullRequestJobNamePattern=Pattern.compile("^PR-" + pullRequestId + "\\b.*$", Pattern.CASE_INSENSITIVE)

https://github.com/jenkinsci/github-pr-comment-build-plugin/blob/master/src/main/java/com/adobe/jenkins/github_pr_comment_build/IssueCommentGHEventSubscriber.java#L94

It is being used to match with the job name.
https://github.com/jenkinsci/github-pr-comment-build-plugin/blob/master/src/main/java/com/adobe/jenkins/github_pr_comment_build/IssueCommentGHEventSubscriber.java#L136

I need help in understanding why does this pattern have to be matched with the job name. As I could understand, the job name contains pipeline name and branch name concatenated by a slash (pipelineName/jobName). I debugged the code, In my case, this pattern is not being matched and hence pipeline is not being triggered.

Thanks