After the validation process the (remaining) problems are shown for all glyphs. Optionally the report can be saved.

 

These glyphs will also become available through a special “Validation Issues” category within the Font panel. While this category is selected you can go to previous and next glyph within a glyph panel to see them step-by-step.

 

Note: The Validation features are not available in the Home Edition of FontCreator.