in reply to
Re: Printing the first letter of the Hebrew alphabet (U05D0) kills script?
in thread Printing the first letter of the Hebrew alphabet (U05D0) kills script?
At this point all ideas help - speculative or untested or not.
However, I wasn't as clear as I could have been in my original post. The terminal does not hang. It just stops displaying any output and returns immediately to the prompt. So there is no opportunity to issue a manual ^F of any sort. I've updated the OP to make it clearer.