QUIC shows "misconfigured" with port forwarding set up correctly

I have forwarded port 28967 for both TCP and UDP. I can access it through both direct IP and domain with my web browser. What could be wrong?

Search this forum. This horse has been dead for a very long time, let’s stop kicking it.

Last kicked literaly this week. QUIC Misconfigured despite pingdom showing QUIC working - #10 by arrogantrabbit

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