Livestreaming from OBS To Kaltura

Hello,

I managed to create a livestream from kaltura got the primary url and the stream name from kaltura and used that as a custom rtmp service in OBS.

When i press start streaming, it works well from OBS and i see traffic going to port 1935 on kaltura.

For some reason i cant see the stream on kaltura side, i get broadcast did not start.

What am i missing?

Thank you