Turning Off UI Navigation in Roblox With Backslash. Disabling UI Navigation Key you turned on accidentally or on purpose is simple. Usually, the key bind for the ”UI Selection Toggle” setting is ...

Re-install Roblox. 1] Change keyboard language. ... You should also try to use the backslash (\) key to open the chat box or window. It should work. Related: Roblox not launching on Windows PC. 2] ...