If a field name is changed in the data model, and a dimension exists referencing the original field name, in the properties panel the dimension is clearly highlighted in red with the text 'Invalid Dimension'. If an expression contains an invalid field, the expression box is highlighted in red, but this is only visible once the measure properties are expanded.
Please could we have an indicator on the measure name, similar to that on the dimension name, so that we can see at a glance which measures are invalid, rather than having to expand each one in turn?