Complex sentence: Due to this order of phonlogical rules, there is still vowel harmony between the suffix vowel and a preceding high vowel as these vowels agree in rounding, while a vowel with the feature (- high) would usually be exempt from rounding harmony.
Split into simpler sentences: Due to this order of phonlogical rules, here is still vowel harmony between this suffix vowel and a preceding high vowel. These vowels agree in rounding, while a vowel with the feature (- high) is usually exempt from rounding harmony.