How does the "send test notification" work?

[djsmix]

I have tried to send a test notification, and it works, but it's empty. Even though I go to the history and see different text there, that text does not appear in the test notification. I have also tried:
{{triggered_text}}
{{diff}}
{{diff_added}}
but it still doesn’t work - did i miss someting, or?

[djsmix]

can someone help me?

[skupi20]

I have the same problem, test notification send empty value on some tokens, also {{current_snapshot}} even i have value at Content after filters

But i saw it sends value when captured value is changed, but sending again with test button, again empty value