The Palettes won't play
During playback the Fortissimos won't transition back into their default noise. Furthermore, using an alternative method of clicking the icons and tabs such as an electronic sketch pad results in the selected highlighted but unable to be selected.
Comments
I'm afraid your question is not very clear.
If I've understood the first sentence correctly: Once you add a fff ("fortissimo") or any other dynamic level, it stays active until you enter a new dynamic symbol. This is the normal understanding in notation. Perhaps you want the sound to go very loud for just an instant, then to return to the previous dynamic level? If that's what you want, then try fp ("fortepiano") or sfz ("sforzando")
I do not understand your second sentence at all, at all. Sorry.