Cooldown manager for Diabolist Warlocks is still bugged since the release of 11.2.5, there are plenty of other minor hotfixes going out but Cooldown Manager remains broken for Demonology.
This is a concerning precedent for Midnight where addons will be more limited.
Any time the Pit Lord Ritual is procced all timers for Charhound / Gloomhound / Dreadstalkers / Demonic Tyrant disappear and prevent the uptime of pets from being correctly tracked.
Can Blizzard please address or at least communicate their awareness of these issues? It is rather worrisome that we will be relying on these tools but they are not currently fixed in a timely or open way.
Hey Galanek,
If you believe that you’re seeing a bug with the Cooldown manager in-game, I would encourage you to report this to our developers. They’ll be able to check this out, and fix what needs fixing. 
Bug fixes are usually published in our Hotfix blogs and patch updates, which can be found in the News section of the main site.
The Alpha for Midnight is currently underway, and I would definitely encourage you to provide this feedback to our developers.
Hi Yryadorne,
I have already provided a bug report for this issue, but decided that a forum post was the best way to raise awareness for others encountering the issue.
I will provide this feedback for the alpha of Midnight as suggested too.
Thank you ever so much for your reply.