@rens Unfortunately AE’s API access to the character palette is extremely limited, so your best bet would be to create a pre-job script that copies your master AEP and opens the project in AE, to run Templater off of the copy instead of the master. This will leave your master always untouched. In the instance that a missing glyph breaks one project, it won’t break all of the subsequent projects. You could also try running an ExtendScript that updates the font on that layer on the post-update event every time, but I think that could be more problematic.
Bot events.