rpm aarch64 no compatible architectures found

[Neurofibromin]

Hey, great project, works well.
When I build rpm packages for aarch64 I get the following error:
No compatible architectures found for build
This happens even if I use the --arch flag:
pupnet --runtime linux-arm64 --kind rpm --build Release --arch aarch64
Any idea how to resolve this?
detailed log

all other architectures work fine - I build these 8:
runtime: [ 'linux-x64', 'linux-arm64' ] x kind: [ 'appimage', 'deb', 'rpm', 'flatpak' ]