Sorry, I don’t know what is causing your issue. I have tried updating a field using a field key that is supposed to add to the choices when a new value is added and it is working for me, so I cannot recreate this issue. The only thing I can think of is that there’s something else interfering with the update.
I don’t know anything about the other ticket system, or very little. As far as I know it just sends an email, but I could be wrong.
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