Running into overlap error when deploying dev environment in Ubuntu

Following instructions at and from Tutorial: How to set up a Nextcloud development environment on Mac or Ubuntu?

$ docker-compose up nextcloud proxy
WARNING: The PRIMARY variable is not set. Defaulting to a blank string.
Creating network "master_default" with the default driver
ERROR: Pool overlaps with other one on this address space

There are no other containers on this machine, and I’m happy to destroy/recreate anything related to docker and compose files.

$ docker network ls
NETWORK ID     NAME                DRIVER    SCOPE
5d3111537af7   bridge              bridge    local
04d3ca5d2871   host                host      local
c4095b8670cd   nextcloud_default   bridge    local
a0e9a2310258   none                null      local