TLS Cert mirrors.rockylinux.org / No OCSP response error

The TLS cert for mirrors.rockylinux.org was renewed (04 Jun) and since then I get

Curl error (91): SSL server certificate status verification FAILED for https://mirrors.rockylinux.org/mirrorlist?arch=x86_64&repo=AppStream-8 [No OCSP response received]
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: Curl error (91): SSL server certificate status verification FAILED for https://mirrors.rockylinux.org/mirrorlist?arch=x86_64&repo=AppStream-8 [No OCSP response received]

this never was a problem before. Anything that can be done?