#4331·yazi

Yazi inside tmux hangs on first action

Author: ysooqeCreated Sep 6, 2026Updated Sep 17, 2026
Labelsbug

What system are you running Yazi on?

Linux Wayland

What terminal are you running Yazi in?

foot 1.28.0

ya env output

bash
Yazi
    Version: 26.9.1 (5f901b8 2026-09-01)
    Debug  : false
    Triple : x86_64-unknown-linux-gnu (linux-x86_64)
    Rustc  : 1.98.0 (88d9e12a 2026-08-18)
    Backtrace: None

Ya
    Version: 26.9.1 (5f901b8 2026-09-01)
    Debug  : false
    Triple : x86_64-unknown-linux-gnu (linux-x86_64)
    Rustc  : 1.98.0 (88d9e12a 2026-08-18)

Config
    Init             : /home/user/.config/yazi/init.lua (806 chars)
    Yazi             : /home/user/.config/yazi/yazi.toml (947 chars)
    Keymap           : /home/user/.config/yazi/keymap.toml (2369 chars)
    Theme            : /home/user/.config/yazi/theme.toml (35 chars)
    VFS              : /home/user/.config/yazi/vfs.toml (No such file or directory (os error 2))
    Package          : /home/user/.config/yazi/package.toml (426 chars)
    Dark/light flavor: ArcSwapAny("catppuccin-mocha") / ArcSwapAny("")

Emulator
    TERM                : Some("foot")
    TERM_PROGRAM        : None
    TERM_PROGRAM_VERSION: None
    Brand.from_env      : Some(Foot)
    Emulator.probe      : Emulator { brand: Foot, version: ArcSwapAny("foot(1.28.0)"), csi_u: Some(0), kgp: false, kgp_shm: false, sixel: true, background: Some([7710, 7453, 14135]), color_scheme: Some(false), csi_16t: (21, 43), force_16t: false, osc_5522: false, cursor_blink: false, cursor_shape: Some(2), mux: None, probe: Probe { id: Id(0), completed: false }, started: false }

Adapter
    Drivers.matches: Sixel
    TERM.dimension : Dimension { cols: 108, rows: 33, width: 2268, height: 1419 }

Desktop
    XDG_SESSION_TYPE           : Some("wayland")
    WAYLAND_DISPLAY            : Some("wayland-1")
    DISPLAY                    : Some(":0")
    NIRI_SOCKET                : None
    SWAYSOCK                   : Some("/run/user/1000/sway-ipc.1000.1785.sock")
    HYPRLAND_INSTANCE_SIGNATURE: None
    WAYFIRE_SOCKET             : None

SSH
    shared.in_ssh_connection: false

WSL
    WSL: false

Variables
    SHELL              : Some("/usr/bin/fish")
    EDITOR             : Some("nvim")
    VISUAL             : Some("nvim")
    YAZI_FILE_ONE      : None
    YAZI_CONFIG_HOME   : None
    YAZI_ZOXIDE_OPTS   : None
    SSH_AUTH_SOCK      : Some("/run/user/1000/ssh-agent.socket")
    FZF_DEFAULT_OPTS   : None
    FZF_DEFAULT_COMMAND: None

Text Opener
    default     : Some(OpenerRuleArc(OpenerRule { id: Id(3), run: "${EDITOR:-vi} %s", block: true, orphan: false, desc: "$EDITOR", for: Unix, spread: true }))
    block-create: Some(OpenerRuleArc(OpenerRule { id: Id(3), run: "${EDITOR:-vi} %s", block: true, orphan: false, desc: "$EDITOR", for: Unix, spread: true }))
    block-rename: Some(OpenerRuleArc(OpenerRule { id: Id(3), run: "${EDITOR:-vi} %s", block: true, orphan: false, desc: "$EDITOR", for: Unix, spread: true }))

Multiplexers
    tmux version       : tmux 3.7c
    tmux build flags   : enable-sixel=Supported
    ZELLIJ_SESSION_NAME: None
    Zellij version     : No such file or directory (os error 2)

Dependencies
    file          : 5.48
    ueberzugpp    : No such file or directory (os error 2)
    ffmpeg/ffprobe: 9.0.1 / 9.0.1
    pdftoppm      : 26.08.0
    magick        : 7.1.2-31
    fzf           : 0.74.3
    fd/fdfind     : 10.5.0 / No such file or directory (os error 2)
    rg            : 15.2.0
    chafa         : No such file or directory (os error 2)
    zoxide        : No such file or directory (os error 2)
    7zz/7z        : No such file or directory (os error 2) / 26.03
    resvg         : 0.48.1
    jq            : 1.8.2

Clipboard
    wl-copy/paste: 2.3.0 / 2.3.0
    xclip        : No such file or directory (os error 2)
    xsel         : No such file or directory (os error 2)

Routine
    `file -bL --mime-type`: text/plain

Describe the bug

The newest yazi version (26.9.1) hangs on the first action (opening a file, dropping into the terminal; anything that suspends yazi). After a certain time (a few second), it continues. Triggering that action again (opening a file etc.) in the same yazi instance does not hang again.

Minimal reproducer

Run these two commands:

bash
$ YAZI_CONFIG_HOME=$(mktemp -d) tmux -L test -f /dev/null new -d -s test yazi
$ tmux -L test attach -t test

Anything else?

I have a custom script that I start tmux sessions from that starts yazi in a pane for me in a pre-defined "layout" (different tmux windows with different things started up in them, one of them being yazi). The above steps are the most minimal steps to reproduce the problem without any custom config.

This worked without any issue in yazi 26.8.15

It could be related to https://github.com/sxyazi/yazi/pull/4271 https://github.com/tmux/tmux/issues/5530

Checklist

  • I tried the latest nightly build, and the issue is still reproducible
  • I updated the environment information (ya env) field to the nightly that I tried
  • I can reproduce it after disabling all custom configs/plugins (mv ~/.config/yazi ~/.config/yazi-backup)