2.10. No visible effect when trying to use the move tool, rotate or other transform tool

How to tell: You are trying to move (or perform a transformation) on a layer but you do not see anything changing.

How to fix: Check the status bar to see if there is a message telling you what is happening, next check Tool Options and make sure that the tool you are using is not set to work on a Selection or Path. These little buttons are at the top of the Tool Options for Transform Tools.