We are working on a document (InDesign) with the language combination English-Edo (Nigerian). The translator has worked with an external file for review. When importing this file one character used in the Edo-alphabet (old italic letter ku / U+10312) is omitted. The character is present in the Word-file. Copy pasting the letter into Trados results in a small box-character being displayed. Font mapping with an alternative font has been enable, but doesn't have any effect. What could be the cause?