We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.
You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
After saving, quitting, and reloading my ironman game, my incapable ruler's regent was removed, and so was the red "no" symbol from his portrait, although he still has the trait incapable.
This is a known issue, which should be fixed in the open beta patch available through Steam. You can opt into that if you want, or just wait for the patch to go live.