Package cannot be verified and repo updates is GPG enabled

Hello, I’m trying to install ZFS on Silverblue. I’ve added the ZFS repo, but I’m stuck here:

Checking out tree 668ea14... done
Enabled rpm-md repositories: fedora-cisco-openh264 updates fedora rpmfusion-free-updates rpmfusion-free rpmfusion-nonfree-updates rpmfusion-nonfree zfs updates-archive
Importing rpm-md... done
rpm-md repo 'fedora-cisco-openh264' (cached); generated: 2021-09-21T18:07:30Z solvables: 4
rpm-md repo 'updates' (cached); generated: 2022-04-26T13:50:35Z solvables: 29876
rpm-md repo 'fedora' (cached); generated: 2021-10-26T05:31:27Z solvables: 65732
rpm-md repo 'rpmfusion-free-updates' (cached); generated: 2022-04-24T17:19:56Z solvables: 193
rpm-md repo 'rpmfusion-free' (cached); generated: 2021-10-23T21:56:55Z solvables: 521
rpm-md repo 'rpmfusion-nonfree-updates' (cached); generated: 2022-04-24T17:51:55Z solvables: 88
rpm-md repo 'rpmfusion-nonfree' (cached); generated: 2021-10-23T23:27:21Z solvables: 203
rpm-md repo 'zfs' (cached); generated: 2022-03-23T18:53:43Z solvables: 34
rpm-md repo 'updates-archive' (cached); generated: 2022-04-26T14:19:45Z solvables: 39657
Resolving dependencies... done
Importing packages... done
error: importing RPMs: package gcc-c++-11.2.1-9.fc35.x86_64 cannot be verified and repo updates is GPG enabled: /var/cache/rpm-ostree/repomd/updates-35-x86_64/packages/gcc-c++-11.2.1-9.fc35.x86_64.rpm could not be verified.
/var/cache/rpm-ostree/repomd/updates-35-x86_64/packages/gcc-c++-11.2.1-9.fc35.x86_64.rpm:  DIGEST:  SIGNATURE:  NOT OK

looks like a temporary issue. Would clear the cache and retry.