I just update to Komodo 10, and find that when I select a block of code, then try to uncomment it, if there are any lines that have no code, the cursor disappears and only the top line of code will uncomment.
For example enter the following commented code, then select and try to uncomment:
<?php //echo "test"; // //echo "test" ?>
and you get, and the cursor disappears (the only way to get the cursor back is to restart the program):
<?php echo "test"; // //echo "test" ?>
I have tried in safe mode and have the same behaviour. Is anyone else seeing this?