In conditional formatting, using the content of another field as condition input in a formula. If, to change the format of "table_1::field_A", I use "isEmpty(table_1::field_B)", this function returns a boolean, and the conditional formatting works. But if I simply use in the formula "table_1::field_B", according to the formula window it also returns a boolean: true if not empty; but then the conditional formatting doesn’t work. In both cases, according to the formula window, the result is a boolean, but the conditional formatting behaves differently.
Please, what am I missing?