If you add a transform to an element in the effects panel you can’t select all the value types.
Example if you Add a transform like move if you change the type to % but want to change back to px it is not possible to select px from the pop up for X or Y but you can for Z options.
Seems to be the same for most pop up panels where you can select value types or where the pop up is larger than the space available in the panel.
I know you can type it in and it will change but we should be able to visibly select the options we want.