It’s a local build problem. Say I make a change. Then once I build that swf, id have to upload it and wait for feedback. In the meantime i would work on solving another problem, and when thats fixed there could be another problem, not impacting the problem earlier in the compiled build. Constantly rebuilding the swf and seeing what works and doesn’t is a task i can only do myself, otherwise i’d have to wait for people to find problems, upload the build, wait a day or so and then fix that only to find another problem which needs to be adressed, or the new build introduced an older problems. Doing this locally i can go from code to build to code as i have a good idea of whats occurring in the debugger, but with a non stable build bug hunting is a different manner.