CK II - Members of public societies get "caught" and executed for belonging to that society

[Gunthah]

One line summary of your issue
Members of public societies get "caught" and executed for belonging to that society

Game Version
3.0

What expansions do you have installed?
All of the above

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
I have seen this happen since Monks and Mystics for religious orders, now it's the same with reformed Hellenic: a member of the Stoic Intelligentsia being burned alive by an Augur. Is this WAD?

Steps to reproduce the issue.
Be in any public society and wait until a fellow member gets "discovered".

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[michx0]

It happens when your society member gets caught by other reasons (secret religion, innocent, rival of court chaplain and so on). It's all OK except misleading notification.