However as long as the gomove addon is sending only custom GM commands .gomove (starting with a dot) may there is no need to send it with SendAddonMessage(). Instead try SendChatMessage(). It will not visible too.
If I write by hand a .gomove command for testing purpose into the chat console the addon is working.
Edit:
Just tested: With SendChatMessage() instead of SendAddonMessage() it works as before.
Rochet2
commented
7 years ago
I think because of this commit the gomove addon is not working anymore: https://github.com/TrinityCore/TrinityCore/commit/508c9d2fc1b20dc2cb40df533e823e1dfe2becc3
Don't know what they have done there.
However as long as the gomove addon is sending only custom GM commands .gomove (starting with a dot) may there is no need to send it with SendAddonMessage(). Instead try SendChatMessage(). It will not visible too.
If I write by hand a .gomove command for testing purpose into the chat console the addon is working.
Edit: Just tested: With SendChatMessage() instead of SendAddonMessage() it works as before.