I very much agree with Jason that it sounds like the same problem described in the earlier topic (and a work around is posted in the same topic):
But, if it always occurs just a few seconds after Raghav starts Altia Design and Raghav is not always clicking in the edit fields of the editor soon after starting Altia Design, it could be a different problem.
Raghav, if the problems do not seem the same, can you give any more information about your activities in the editor immediately before keyboard actions stop working? Also, what exact version is the editor? You can determine this by opening the Help
menu and choosing the About Altia Design...
menu option. And do all the menus and buttons in the editor still work and mouse clicks still work in the drawing area (i.e., where your design work is showing), but just not keyboard actions? Finally, if you open the Animation Editor or Stimulus Editor, can you type into any of the edit fields in either of these editors?