I am running org-mode 8.3.6 (8.3.6-6-g194e51-elpa @ .../.emacs.d/elpa/org-20161003/) in GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7).
In this version, visibility cycling does not work as expected. Consider the following three-line example file:
Consider the following sequence of commands:
1. Place cursor on the letter b.
2. In the menu, choose Org > Refresh/Reload > Refresh setup current buffer.
(I do not know how to access this command directly).
3. Press TAB on your keyboard.
If I do this in org-mode 8.3.6, my buffer looks as follows:
In this minimalistic example, pressing TAB once more will bring back the line with the c, but in more complex examples, some parts of the buffer seem to "get lost". Moreover, I often find my files garbled like this when I open them from the agenda.
If I apply the above sequence of commands using my built-in org-mode 7.9.3, everything is fine.