My drawers don't seem to collapse with TAB. I've even tried the canonical example:
* This is a headline
Still outside the drawer
This is inside the drawer.
After the drawer.
When I place the cursor on the line
:DRAWERNAME: and hit
TAB nothing happens:
Also, when I place the cursor on the headline and press
TAB repeatedly, I cycle through the following two states:
In other words the entire headline appears collapsed but the drawer itself is never collapsed.