Thanks for catching these! I've fixed the first one in my version, but the second is weird—it shows up fine in Affinity, but not in the exported .pdf, which is odd because the scripting for it works the same as PIECE_TOUT later on in that section, which displays right. I'll see if I can fix it today, and I'll publish the update after.
So I've traced it back to a bug with the affinity file or maybe publisher as a whole, where this one ligature doesn't display right unless it's used outside a table elsewhere in the file... so now one of the icons in the big demo in Chapter 1 is D6_TOUT. It works fine in shorter files and outside tables (so far) so I reckon it's some kinda pdf export issue (basically unsolvable from my end).
I've updated the files and I'll check this out again when I'm doing the v1.2 guide, but for now, this works.