MacOS not running first cmd on each pane

Describe the bug When using tmuxinator, the first command in each pane is only printed/displayed but not executed. This happens consistently across all windows in the configuration. Other commands in the same panes work correctly, but the first command in each pane fails to execute. To Reproduce

Create a tmuxinator config file with multiple windows and panes Include commands in the panes The first command in each pane will only be printed, not executed

Expected behavior All commands in the panes should execute properly, including the first command in each pane. Environment

tmuxinator Version: 3.1.2 tmux Version: 3.4 Ruby Version: ruby 3.0.7p220 (2024-04-23 revision 724a071175) [arm64-darwin23] OS: macOS 15.1 Additional information

This issue only affects the first command in each pane The commands are visible in the pane but not executed The same configuration works correctly for other team members Various workarounds attempted:

Using exec prefix Using send-keys Using shell_command format Using different pre_window delays Using explicit paths