Error while auto-mounting forests: "Storage already mounted under main path"

user@affc642ff893 ~> wl start
Resolving containers: :/mydirs/kartoteka:*:
Resolving containers: :/mydirs/kartoteka:/forests/cafe:*:
Resolving containers: :/mydirs/kartoteka:/forests/pandora:*:
Mounting 102 containers.
Non-critical error(s) occurred:
Failed to mount: WildlandError: Storage already mounted under main path: /.users/0xcd5ad6ed64f28561134818db641d475dbcf43fff7a4517c9cdb1658901842579:/.backends/31fdd948-8383-4590-98e1-7814af54d00d/206ac663-f091-437f-b4b1-88b241a6bd1a