GPG signature verification error: Signing key not found

All;

I installed PostgreSQL on a new Fedora 41 - KDE install, when I try to install anything I get this:

PostgreSQL common RPMs for Fedora 41 - 100% | 1.9 KiB/s | 3.7 KiB | 00m02s

Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 17 for Fedora 41 - x86_64 100% | 2.8 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 16 for Fedora 41 - x86_64 100% | 3.5 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 15 for Fedora 41 - x86_64 100% | 4.7 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 14 for Fedora 41 - x86_64 100% | 4.4 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 13 for Fedora 41 - x86_64 100% | 3.2 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found
PostgreSQL 12 for Fedora 41 - x86_64 100% | 3.3 KiB/s | 4.1 KiB | 00m01s
Librepo error: repomd.xml GPG signature verification error: Signing key not found

Thanks in advance for any help

Why does dnf give GPG signature verification errors for repos with repo_gpgcheck=1? - #5 by tflink

Thanks for the info, I was unaware it was a known issue.

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