In my language pair (with Cyrillic) I often had problems with corrupted formats, wrong codepages and encoding (mostly re-converting Win-XXXX, UTF-8/16, Uni via NotePad++ or SynWrite).
However, could you share with other users how you have coped with the problem?
We are neither the first, nor the last)
I simply reinstalled the program... I don't know if it had something to do with the version or not, but now it is working just fine.