Hi again,
found another bug that does not exist in official 1.0.3. Scenario:
Open a sketchbook that has at least three tabs (create folder Test in your sketch directory and create three files inside: Test.ino, Test2.ino and Test3.ino). When you press Ctrl + Alt + right arrow, editor jumps to the third tab, Test3.ino, instead of the second one. Ctrl + Alt + left arrow jumps back to the first tab.
Workaround: Click on the dropdown list on the right of the tabs and select Next Tab menu item. From this moment Ctrl + Alt + right/left arrow works as expected.
Can you fix it? Thanks.