Font properties in Source Text keyframe animation

Hi all,

I created some typewriting effects for some text titles, by adding keyframes (one letter at a keyframe) using the "Source Text" option.

Now I want to change the font, but when I do, it only changes it to one keyframe, not the whole animation.

I tried changing it from the Essential Graphics tab as well, not just from the Effect Controls, but still nothing.

Do you have any idea how I could go around this?

Cheers!