What basically “deceived” me with regards to saving is the fact that after being done with the “Voodoo Controls”, the whole settings screen closed, not making it possible to save the settings until reopening the setting screen. Hence giving the false impression all setting were already saved.
Seeing the settings screen after completing the mapping with the save button may help already.
Off course, automatically saving would be even better.
Even though the app does have some usability flaws here and there I do want to say:
It’s by far the best and feature rich DOSBox emulator (for Android) on the market, and I’m really happy with it!
Actually it has a lot of feature that I wish the Windows DOSBox has.