yes I am, but this is a known thing. I've been running run uo for a long time, and I notice you can't just dupe spawner cause if you dupe a new spawner it will work on the last spawner, but the new one will not spawn anything.
You use the [dupe command to dupe the spawner, then [move to move it from your pack to the world, then double click it and click either "respawn" or the on/off button.