foreign language in InDesign only shows box with an x
I am working on a project for a client. The text they provided is a word document in Armenian. If I copy and paste or import the text from the word document into InDesign it only shows boxes with an X like this:

The font I am using is PT Sans Pro. I checked under the Find Font and it is not missing. I looked in the glyphs and I see the Armenian characters. I also copied and pasted the text from word to a text file, removed the formatting and tried pasting into InDesign but no luck.
I have done similar projects in other languages (Spanish, Chinese etc.) and it works fine.
I am on a MacBook Pro using InDesign CC.
Any suggestions on how I can get this to work?
