Package: qtcreator Version: 3.2.1 1) Open any text in Qtcreator. 2) Switch from English language to Russian via win key. 3) Type any text. First input char losing. You print "абв", but get "бв".
This bug already fixed in Qtcreator 3.6.0 (https://bugreports.qt.io/browse/QTCREATORBUG-9589). But 3.6.0 version not available in Debian Jessie even via apt-get -t stretch install qtcreator (problem with dependencies). So, I think Qtcreator 3.6.0 must be at least added to jessie-backports.