buildAgent launchd config loads as inactive in TeamCity

I have configured TeamCity to start with a launchd plist in /Library/LaunchAgents and it works great but unlike runAll.sh the default buildAgent isn't available. I don't need a custom buildAgent, just want the default buildAgent to start with TeamCity as a launch agent or launch daemon.

So I configured ./TeamCity/buildAgent to start with launchd plist (below) in /Library/LaunchDaemons (tried LaunchAgents and that failed with permission errors and I found articles on the web saying to do it in LaunchDaemons even though TeamCity is a LaunchAgent).

Anyway both processes are running on the same Mac with the same user.

After a system restart, launchd err and std out logs are empty, and there are no error log entries for the agent itself and using launchctl, you can see it's loaded:

> launchctl load /Library/LaunchDaemons/jetbrains.teamcity.BuildAgent.plist
/Library/LaunchDaemons/jetbrains.teamcity.BuildAgent.plist: service already loaded

But when I browse to TeamCity (localhost:8111) the Agents available indicator shows "0".

Agents view shows 0 connected and 2 disconnected agents:

Default Agent - Status: green - Last communication: 06 Nov 17 10:03 - Inactivity reason: Server shutdown
local - Status: green - Last communication: 05 Nov 17 13:44 - Agent has unregistered (will upgrade)

Anyone have any ideas what I need to look at? I've attached my launchd plist as well, in case there is something wrong in there. I just want to use the default buildAgent exactly as if I had started TeamCity with runAll.sh.

Here is my launchd plist:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

<plist version="1.0">

<dict>

        <key>WorkingDirectory</key>

        <string>/Users/teamcity/TeamCity/buildAgent</string>

        <key>Debug</key>

        <false/>

        <key>Label</key>

        <string>jetbrains.teamcity.BuildAgent</string>

        <key>OnDemand</key>

        <false/>

        <key>KeepAlive</key>

        <true/>

        <key>ProgramArguments</key>

        <array>

                <string>launcher/bin/TeamCityAgentService-macosx-universal-32</string>

                <string>-c</string>

                <string>../conf/wrapper.conf</string>

        </array>

        <key>RunAtLoad</key>

        <true/>

        <key>StandardErrorPath</key>

        <string>logs/launchd.err.log</string>

        <key>StandardOutPath</key>

        <string>logs/launchd.std.log</string>

        <key>EnvironmentVariables</key>

        <dict>

                <key>LC_TYPE</key>

                <string>en_US.UTF-8</string>

        </dict>

        <key>UserName</key>

        <string>teamcity</string>

</dict>

</plist>