I'm using the 5th Edition OGL character sheet. On the first page of the core tab, there is the Attacks and Spellcasting area. If you edit your attacks and spellcasting area, there is a Description Field, which will show short descriptions when you click the attack or spell. Often, this field will not retain its entries when you exit the game. It doesn't always happen, but it does frequently. I thought this might be tied to editing the spells on the spell sheet, and that absolutely does clear the Description Field. But I was very careful not to edit a spell unless I copied the field first. Yet when I exited and returned later, half the fields were cleared.