I have just picked the first plant. Have moved on the way the arrow is pointing but I am stuck on the final ledge before the pitfall.
I have gone back to an earlier save and tried again but I still can't move from the last ledge.
My characters have also been jumping really fast and erratically.
During fights the cursor has been jumping erratically too.
But the main problem is I can't move on. Is this part of the problem D-Squall reported?