Error on Restoring Session

[ThomasCode92]

Whenever I start the tmux server, it attempts to restore my sessions, which seems to succeed. However, I see the following error message displayed at the top of the screen:

cat: '/home/thomas/.local/share/tmux/resurrect/restore/pane_contents//pane-dotfiles:1.1': No such file or directory

Steps to Reproduce:

• Start tmux and open multiple panes.
• Use tmux-resurrect to save the session (prefix + Ctrl-s).
• Restart the tmux server.
• Observe the error message at the top of the screen.

Expected Behavior

The session should restore without any errors, and all panes should be properly restored with their contents.

Actual Behavior

The session restores, but the error message appears regarding a missing pane_contents file.

Additional Information

• I use the fish terminal
• The error suggests that tmux-resurrect is looking for a missing file in the pane_contents directory.
• Attached is a screenshot of the issue:
  

[penryu]

I'm getting the same on ~2 of 6 panes in my tmux sessions. The exact pane(s) that exhibit this behavior varies by session being restored.

The panes that fail to load their contents do not seem to correlate with the order of panes listed in the resurrection file(s) (tmux_resurrect_YYYYMMDDTHHMMSS.txt)

I've looked inside the pane_contentx.tar.gz archive and all the pane contents files that the errors mention are present in the archive. This suggests the extracted contents might have been cleaned up before these panes were fully restored.

I'm also using fish shell, and when I looked in restore.sh, I found this, which indicates that this might be a regression. Perhaps a race condition, or a change in behavior of fish since this was last addressed. (fish did see a major rewrite in the last couple years, so this is possible.)