Issue Description
None of your tokens are rendering inside of your .ics Calendar File token and instead showing as the {{lead._____}} form.

Issue Resolution
This is caused when a single token has an undefined value like a 'My Token' which doesn't exist in your Program.

Send yourself a version of the Calendar file and look for a blank space where a token should be- This will be the token causing the others to not work.

Make sure to define a value for this token and then your Calendar File will render without issue.