I've been trying to use code annotations starting with version 23. I've had them disappear on me when updating and it appears that's because the .sca file gets overwritten. I don't have an exact sequence of events that causes the problem. I can report that in the code annotation manager the "close annotation file" button is always disabled. I'm not sure how to tell which file (there are 3 listed, personal, workspace, and project) is supposed to be getting used. Is this feature actively being developed or is it something that doesn't get much use?
I'm running on Windows and the latest hotfix 2.