Steps to Reproduce:
Enable 2010 Wikieditor toolbar in preferences. Open any page to edit Select Telugu Transliteration (లిప్యంతరీకరణ) as input Type SAstraj~nuDu
All Guninthas (vowel suffixes i.e A aa i I ii ee u U uu oo R Ru ~l e E ai o O au ) of the complex consonant జ్ఞ also do not shape correctly.
This is not a problem when using inscript method. This is a major irritant, forcing users to resort to external primitive tools to get the word correct.