If I enter text in the Search field, I can see a "(1 of <n>)" value shown to the right of the field, showing that there is indeed matching text in the topic. However, the arrow buttons are greyed out and won't let me click them to go to the first instance.
It turns out this is because the value(s) are in a table. Can Madcap Flare not find values in a table? (In a table _header_ seems fine, but not in the table itself).
P.