mmm..I'm having the same issue:
in my GCP agent:

base) root@gst-cv-glema3-final-tf2-cu101:~# clearml-agent daemon --queue redness
Current configuration (clearml_agent v0.17.1, location: /root/clearml.conf):

sdk.storage.cache.default_base_dir = ~/.clearml/cache
sdk.development.default_output_uri =