Notification is not sent to a newly created project

[bsvTag]

I have a project over 2 years and redmine slack plugin installed. I didn't add any custom fields, because I want to get notifications about any project on my redmine. Recently, I added new project, and I noticed, that there are no notifications about this project. How can I fix this issue? I don't need to customize URLs per project basis, since I want to get all notifications into one slack channel. I don't see any logs in production.log related with slack plugin.
My config:

Environment:
  Redmine version                3.2.0.stable
  Ruby version                   2.0.0-p598 (2014-11-13) [x86_64-linux]
  Rails version                  4.2.5
Redmine plugins:
  redmine_slack                  0.2 

[hokkey]

I found the article about the spec changing at here:
https://api.slack.com/changelog/2017-09-the-one-about-usernames#changing

I had misunderstood the subject of this issue. My post may not be related to this issue. Sorry for that 😓