The fix for this was released in 2.4.2.128, although latest 2.4.2.129 has it as well. What upgrading will do is rename any Hub Variable with a single quote in its name to the same name minus the single quote. This will update the apps that use that Hub Variable to reference the changed name. And, Hub Variables itself will now disallow the prohibited characters when renaming a variable. Please post when you have given this a shot.
Download the Hubitat app
