photoshop

Certain letters not showing in Photoshop... unless copied (?)

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I've been working with Lunatix Bold recently. It has all the accents and special characters I need.
However, when I'm writing something in Photoshop, it doesn't support certain characters, such as ¡, ¿, Ñ and the acute accented vowels (to be precise, it doesn't accept anything that is not the standard English set of characters). Then I write the text, using the same font, in Word. It's fine. I copy-paste the text into Photoshop... and it's fine!

Does anyone know why this happens? If this helps, I use FontCreator 5.6 to view the characters, and all non-standard characters are blue (the standard are green or sometimes red).