Docker kopia server mount issue

Trying the docker server mode first time, and it seems to be working - I can take snapshot of the data volume and restore it to another volume that kopia docker has access to, but when try ‘mount as local filesystem’ instead of restore, it creates a folder like ‘kopia-mount3557535571’ inside the mont location ‘/tmp:shared’ which is empty. The logs shows “DEBUG kopia/server mount controller for k360474be4edd1a4dd3703943eed683e0 not found, starting”