uhm...strnge behaviour...did you reboot after install? I'm doing this test in conversation: put a letter, close,reopen, put a letter close...
I've write "hello how are you" in this way without problem...and in X-Term all works fine...Only consider that also standard kb doesn't reopen with entered text in x-term

EDIT: Did exactly your test and all works fine BUT I've noticed this problem in microB during my tests so the problem exists and not only in microB. If I can find a way to reproduce this bug always I can fix easily