By other plants I assume you mean bananas. Like growth habit, bananas can show a great variation in leaf dieback across the varieties. Some leaves dry up and stay on the plant, some wither off leaving the pseudostem that slowly turns brown, and some get soft and brown before drying. It's probably just how the leaves/outer pseudostem sheaths of that particular banana plant you have die back. I have a banana plant by my coconut grove that exhibits similar tendencies, and it hasn't rotted in the year or so that I've had it, so don't worry if it's recurring as long as the alive leaves are healthy and it's not dark and rotted-looking
