@CodeSmile I’m not so sure that’s the case here.
There’s a well-known issue with 1.4.1+ preventing WASD from working when another action on an enabled action map has WASD. That’s due to new behavior for multiple actions using the same bindings.
The editor version update probably caused an update to the Input System package when you opened the project with that editor. There was an automatic Input System package upgrade if you were upgrading from editor 2021.3.7 or lower.
The recommendation is to disable maps that aren’t being used at a specific moment - the conflicting map is probably your UI map, which should probably not be active while you’re playing the game.