Don’t worry 🙂 It just took a bit more time as I expected to debug this. In the meantime I answered some other simpler queries.
I have found a few issues, I think I managed to patch them all for now. The main problem was a “timing” issue, where the browser states were set too early, and it made it work all incorrectly. There was also an issue with the cache, that caused the issue with clicking on the “all” button.
The browser forward/back is not going to be perfect though. Programming the states and switching back and forth is very tricky. For the most part it should work now though.
Make sure to clear your browser cache to see the changes. I will of course make sure to include these in the upcoming release.