Hi Alex, I have i believe the same problem like you and the reason for that is only because i define in Layout -> Document -> Language -> Hebrew. I believe you defined there French (I must say, that i can also see the symbol \Gamma with French definition). What had you define there? Please try do define there English and see if its works. Its not a solution, but this information maybe could help other people to help you or to fix this bug in the future.
Hannan
