Hello,
I have several tmuxp configuration files using environment to pass an env variable to the created session.
When I launch them from a terminal, the environment variables are set. But when I launch them from a running tmux session they are not.

Do you have idea what's causing this behavior?

Failing testcase

session_name: test
environment:
  FOO: bar
windows:
  - panes: ['env | grep FOO']

Running tmuxp load -y test.yml shows FOO=bar, whereas launching the same command from a tmux session doesn't.