Updates released by Apple on Monday for iOS, macOS, tvOS and watchOS patch a flaw that causes applications to crash when rendering specific strings of Indian characters.

Someone noticed recently that displaying a string written in India’s Telugu language (జ్ఞ‌ా) caused many apps on iOS and macOS to crash. The list of impacted apps includes Twitter, Firefox, Chrome, Safari, WhatsApp, Mail, Thunderbird, Instagram, Slack and others.