HLS "Default" Bandwidth

Hello, I could notice that the HLS master playlist created for one signal ingested on my EMS (createHLSStream) detected a wrong BANDWIDTH: Someone wrote:

$ curl http://myserver/myhlstream/playlist.m3u8 #EXTM3U #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=1000 bitrate_with_464/playlist.m3u8

Since I’m not passing the bandwidth on createHLSStream, I suspect that EMS couldn’t find the right bitrate and put this by default. I tried to reproduce this using another signal (from other encoder) but this time EMS found the right one. Is my suspicion correct?