"Invalid message received" in v7001

[normen]

Since updating to v7001 I am getting a lot of these messages:

13:13:50 7ad0f164649e[21430]: JVB 2022-03-13 12:13:50.684 WARNING: [42] [confId=ab704a09e87d69db epId=9705dce6 gid=85935 stats_id=Floyd-dQD [email protected]] AbstractEndpointMessageTransport.onMessage#67: Invalid message received (Parameter specified as non-null is null: method org.jitsi.videobridge.message.EndpointStats.put, parameter value (through reference chain: org.jitsi.videobridge.message.EndpointStats["connectionQuality"]): {"colibriClass":"EndpointStats","bitrate":{"upload":838,"download":846,"audio":{"upload":14,"download":0},"video":{"upload":126,"download":846}},"packetLoss":{"total":0,"download":0,"upload":0},"connectionQuality":null,"jvbRTT":16,"maxEnabledResolution":360}

The server is running on docker behind a nginx server that is running on the actual machine.