Bars repeat bug


I have a 2 bars snare that I want to repeat twice. I select the first 2 following bars, press SHIFT-R and write %2: the %2 symbol appears. Now I select it and I drag the right handle over the following 2 bars and the right handle disappears, going in the middle of the original 2 bars.

See the following movie:

If I go further to do a 3rd repeat the handle reappears in its right place.