LIVE streaming to FB group is set up, but not working as it should

I want to live stream to my FB group. I have set it all up according to the new way since april 22nd, but when going live via "Custom streaming" and on FB via Streaming software, it doesnt remember the streaming code and URL's. It should be a one-time setup, but at always asks for the detalis again...what Im I missing? Thanks🙏