Hey, I had the same issue, when I was testing with my slightly older “Version 6.1.0-1698752711.d7dece56.bookworm”.
Even changing the execution from “Selective” to “Always” didn’t solve this.
The first trigger for updating ticket owner works well, but my second trigger is not executed automatically - as described by @mathias. I have to save the owner again to make the second trigger doing the defined action.
Somehow I cannot embed a screenshot of my trigger configuration in this reply.