An extra little circle shown after hiragana depicting pitch?

[Chinchilla-white]

In the hiragana depicting pitch accent, it seems that a little circle appears after a hiragana with ten ten and with a high pitch (so it has a line above it).

e.g. There is also a little circle between が　and し in ひがし.

[mvysny]

That is correct. As discussed here #642 , the little circle ° depicts the 'nasal' information: perhaps this one? https://en.wikipedia.org/wiki/Dakuten. This "nasal" sound is pronounced by NHK presenters as standard Tokyo accent. But it's also considered outdated by some Japanese. I will add an option to hide the "nasal" sound - perhaps even the nasal sound should not be displayed by default.

[mvysny]

Fixed in Aedict 3.39.11