I'm noticing that pressing F5 does not pick up changes. It just says something like...
------ Deploy has started: Project: my project - sandbox ------ Search for changed files has started [22:25:54.726]. The changed files were not found. Time Elapsed 00:00:00.002 ========== Deploy: Project: my project - sandbox succeeded ==========
Pressing F5 a second time behaves as-expected and does the build.
At first I thought that maybe the time check only had seconds resolution and I was just pressing F5 too quickly but I know I've seen this happen with a delay of several minutes between when I stopped changing the code and pressed F5. Sometimes it seems to happen almost every time, sometimes it seems like I go hours without seeing it.