<% today %> won't change

Hi,

i insert <% today %> in a template,

Screenshot from 2023-12-28 14-15-22

and try to use the template, the date shows up when i click the block,

Screenshot from 2023-12-28 14-17-41

but the date comes back to <% today %> when my mouse is out of the block,

Screenshot from 2023-12-28 14-18-50

is that correct? or how can i render it to a regular date format?

Thank You!