MOH Streaming spawns multiple running instances

I just upgraded to trixbox and freepbx 2.5 from an older version of trixbox.

I had a streaming MOH category

/usr/bin/mpg123 -q -s --mono -r 8000 -f 8192 -b 0

that worked just fine.

However now when I add this MOH category 3 mpg123 sessions are created (without any active calls).

If I actually implement this category as the MOH for and inbound or outbound route. The number of mpg123 sessions increments. I had 61 mpg123 sessions actively streaming at one point tonight before I deleted the MOH category.