This is specifically in reference to the Astonishing Swordsmen & Sorcerers of Hyperborea sheet but I have had this problem several times over the years, including with D&D 5e sheets. It is as follows: On the character sheet there will be a section (in this case 'Weapon Masteries/New Weapon Skills'), with a form underneath it and the ability to add a new entry form with a (+). I fill in the existing form, and it saves, no problem. I hit the (+) for a new field and it appears, I fill it in, and as soon as I click out of it it instantly disappears. I can see no reason for this to be happening, but it happens with a variety of sheets and has been a problem for at least the past ten years that crops up from time to time. Why does this happen, and how can I stop it from happening? I also will not use Chrome or Firefox because I don't like doing the NSA's work for them.