Update 9.4 and after are breaking focalboard

Summary
After upgrading the Mattermost server, the cards stopped working. It gives an authorisation error.
And the boards api gives error 500

Steps to reproduce

  • Edition:Mattermost 9.5.2
  • Version: Mattermost Boards (focalboard - 7.11.4)

Observed behavior


Log:
Logs:
{
“caller”: “app/session.go:94”,
“error”: “createSessionForUserAccessToken: Invalid or missing token., resource: UserAccessToken id: token=95atuo4m5pgomncjajm7tzrywo”,
“level”: “warn”,
“msg”: “Error while creating session for user access token”,
“timestamp”: “2024-03-11 08:40:30.421 +05:00”
}
{
“caller”: “plugin/client_rpc_generated.go:689”,
“error”: “connection is shut down”,
“level”: “error”,
“msg”: “RPC call WebSocketMessageHasBeenPosted to plugin failed.”,
“plugin_id”: “focalboard”,
“timestamp”: “2024-03-11 08:40:30.421 +05:00”
}
{
“caller”: “plugin/client_rpc_generated.go:654”,
“error”: “connection is shut down”,
“level”: “error”,
“msg”: “RPC call OnWebSocketDisconnect to plugin failed.”,
“plugin_id”: “focalboard”,
“timestamp”: “2024-03-11 08:40:30.421 +05:00”
}
{
“caller”: “plugin/client_rpc_generated.go:620”,
“error”: “connection is shut down”,
“level”: “error”,
“msg”: “RPC call OnWebSocketConnect to plugin failed.”,
“plugin_id”: “focalboard”,
“timestamp”: “2024-03-11 08:40:35.432 +05:00”
}

What database are you using for the backend, please? I’m trying to replicate this in my dev environment using Mattermost 9.5.1 and Focalboard v7.11.4, using PostgreSQL v15.4, but Boards seems to be working as expected.

Please confirm the database (including version) and share steps to reproduce the issue.