JVB is unable to estimate participants bandwidth and lost packages

Good morning community. We have two different environments for our jitsi meet installation. One is used for internal tests and the other is the productive one. We noticed that in our production server we are not able to see the stats of the other participants (we only can see our own bitrate, lost packages and E2E RTT) as they appear as “N/A”:

So I was wondering if anyone in the community knows the possible causes and if this could be causing some freezing issues that we have observed in the video streaming (because I suppose it may be affecting the jvb simulcast algorithm)