Microsoft says the bug affects Windows 10 client versions 21H2, 21H1, 20H2, and Windows Server 20H2. Windows 11 users and customers using only one input language, are not affected.

Learn how to enable, disable, turn on, remove, turn off Language Bar or Input Indicator in Windows 11/10 Taskbar. Set it floating on Desktop, fix it to Taskbar, Hide it.