Template - Dates are not shown in header only in the body

[Guest]

E.g. the date {{modifiedAt}} is not shon in the header. No matter if {{modifiedAt}} or {{{modifiedAt}}}.In the body it is working fine. Typo impossible due copy and paste.

[Guest]

Sorry, post can be closed / deleted. It's a unclear formating failure. If I place a blank space before the {{modifiedAt}} it is displayed correctly. Don't know why but doesn't matter.