board.kairon.org

In response to a question about how to fit Ophiuchus into Kairon charts, Mehem Ptah answers at board.kairon.cc Forum Index -> FAQ 3.0-3.5.12:

"if in the defaults section of the preferences you select the double wheel, you will find that sign between scorpio and sagittarius."

I'm running Kairon 3.6 (the Pro version, I believe). At Preferences>Default there is no double wheel option. There is a Double Zodiac, but that does not present a chart with 13 sun signs.

What am I missing?

hmmm.... sorry, if i messed up the name, but at least you found it.
why the number thirteen bugs you i don't know.
the double wheel/zodiac or whatever works like this:
inner wheel is what you choose, like tropical or ayanamsa, the outer wheel shows the sky with the star signs in their "real" sizes... at least it comes closer to the phenomenon.
maybe you counted the signs of the inner part of the double zodiac instead of the outer part?