I've found a character combination that does not render correctly in this font, but looks OK in other Myanmar fonts. The problem sequence is: u+1016 u+1060 u+102f u+1036. The two lower diacritics (1060 and 102f) overlap.

The same problem appears with these non-Burmese language diacritics and u+102f:
1058, 1059, 105e, 105f, 1082, 108d, and potentially others.

This looks right in the following Unicode fonts:

• Panglong
• Pang Long 2011
• Mon3
  
• MS mmrtext (but the 102f diacritic is short
  
  

.)