Hmm - I think there was a problem encoding this puzzle. I'm going to get in touch with the editor to be sure, but I notice that the same problem occurs with Across Lite and with the web interface to the NY Sun (well in the web interface it just removes the characters entirely).
I examined the puzzle file and for instance, the hex character in "Zo‰" is 0x89, the Windows CP1252 encoding character for "per mille".
As far as I know, CP1252 is the expected encoding for these puzzle files.