Can't mount Backup using MacFUSE

[The-Judge]

Description

I installed borgbackup and Vorta as it is described for MacFUSE support using Homebrew, but can't mount an archive.

Installation

$ brew install --cask macfuse
$ brew install borgbackup/tap/borgbackup-fuse
$ brew install --cask vorta

Error description

I have a remote SSH Repo configured for Vorta backups.
Backups and Restore work fine; Backups have no issue and when I choose to restore, a File-Tree is shown, showing everythin as being healthy and I can choose to restore elements fine.

When I choose to mount, however, I receive an AssertionError.

Reproduction

• I tried to reproduce the issue.
• I was able to reproduce the issue.

OS

MacOS 26.2 (25C56) (Tahoe)

Version of Vorta

0.11.3

What did you install Vorta with?

Homebrew

Version of Borg

Local: 1.4.3, Remote (SSH Repo): 1.2.4

Logs

2026-02-05 11:20:04,494 - vorta.keyring.abc - DEBUG - No module named 'secretstorage'
2026-02-05 11:20:04,494 - vorta.keyring.abc - DEBUG - Using VortaDarwinKeyring
2026-02-05 11:20:04,494 - vorta.borg.borg_job - DEBUG - Using VortaDarwinKeyring keyring to store passwords.
2026-02-05 11:20:04,502 - vorta.keyring.darwin - DEBUG - Retrieved password for repo ssh://judge@10.110.0.151//mnt/macos_vorta_backup/macbook_work
2026-02-05 11:20:19,595 - vorta.borg.jobs_manager - DEBUG - Add job for site 1
2026-02-05 11:20:19,596 - vorta.borg.jobs_manager - DEBUG - Start job on site: 1
2026-02-05 11:20:19,601 - vorta.borg.borg_job - INFO - Running command: /opt/homebrew/bin/borg --log-json mount ssh://judge@10.110.0.151//mnt/macos_vorta_backup/macbook_work::MBP-marichter-3-2026-02-04-172207 /Users/marichter/Desktop/1
2026-02-05 11:20:20,312 - vorta.borg.borg_job - WARNING - Remote: Warning: Permanently added '10.110.0.151' (ED25519) to the list of known hosts.
2026-02-05 11:20:24,180 - vorta.borg.borg_job - ERROR - Local Exception
2026-02-05 11:20:24,181 - vorta.borg.borg_job - ERROR - Traceback (most recent call last):
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/archiver.py", line 5743, in main
    exit_code = archiver.run(args)
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/archiver.py", line 5661, in run
    rc = func(args)
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/archiver.py", line 1454, in do_mount
    self._do_mount(args)
    ~~~~~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/archiver.py", line 200, in wrapper
    return method(self, args, repository=repository, **kwargs)
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/archiver.py", line 1464, in _do_mount
    operations.mount(args.mountpoint, args.options, args.foreground, args.show_rc)
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/borgbackup-fuse/1.4.3/libexec/lib/python3.14/site-packages/borg/fuse.py", line 549, in mount
    assert isinstance(dir_group, str)
           ~~~~~~~~~~^^^^^^^^^^^^^^^^
AssertionError

Platform: Darwin MBP-marichter-3.local 25.2.0 Darwin Kernel Version 25.2.0: Tue Nov 18 21:07:05 PST 2025; root:xnu-12377.61.12~1/RELEASE_ARM64_T6020 arm64
Borg: 1.4.3  Python: CPython 3.14.2 msgpack: 1.1.2 fuse: llfuse 1.5.1 [pyfuse3,llfuse]
PID: 90162  CWD: /
sys.argv: ['/opt/homebrew/bin/borg', '--log-json', 'mount', 'ssh://judge@10.110.0.151//mnt/macos_vorta_backup/macbook_work::MBP-marichter-3-2026-02-04-172207', '/Users/marichter/Desktop/1']
SSH_ORIGINAL_COMMAND: None