Looking for Spectator Addon!

Hello Guys,

me and Stinglee would like to host a 2v2 Tournament on the 2nd of March.
Therefore, we are looking for a good spectator addon. Thats why I am asking for your help. Maybe you can provide us with an actual working spectator addon, so we (the hosts and commentators) can stream and make good commentaries. Something like this: https://forum.warmane.com/showthread.php?t=301146
The problem with this addon is, that the Buffs and Debuffs are not shown live (synchron). They stay shown, even though they are already inactive. They remain grey for a short period of time. In some other posts I read, that the reason for that is the merge with molten core and that the server core has change.
"The server cannot communicate niceley anymore with the synchronisation of buffs/debuffs"

If any of you guys have a working addon, that would be insane. I have also tried fixing the addon by myself by looking into the LUA.File.

Thanks for your help!

Seva & Stinglee