There are several issues I have with Indent Guides in 8.03 (they were also present in earlier versions, but I had completely no time to report the problem, sorry).
1. In some cases the guides are drawn incompletely.
2. Even when the guides are drawn, they are not “stable”: sometimes they are not redrawn by EE when I e.g. scroll the text, but when I make EE redraw its window completely (e.g. by switching to another application and back), the guides are back.
I didn’t try to correct this issue in minor updates because it is not a critical issue. I will try to correct it in v9. Thank you.