Why did Sumire's summoning Nue act strangely in response to Kawaki's karma?

Read also:

• How can fashion design be used to make a political statement in popular culture, and society?
• What are your political and economic beliefs? How did you form them, especially in comparison to those who hold opposing views?
• Squished Like a Bug By an Ornithopter Playing Dune: Awakening PvP? You're Not Alone — And Funcom's Looking Into It - IGN
• Why do Muslims not get HIV/AIDS in spite of having 4 wives and multiple relationships?
• What do you think about a sister's love?
• Why can't my adopted sister accept she is not part of my family because she isn't related? Why can't she stop calling my parents mum and dad?
• What is one thing which you cannot stop however hard you try?
• Will my 9 year old face more difficulties than most girls her age if she’s an early bloomer? My daughter already needs regular B cup bras. The doctor says that my daughter will be even more developed by 11-12 years of age.
• Since the rise of feminism, the dating market has shifted to the disadvantage of men and that is causing this incel phenomenon. Why do women not understand how lonely the majority of men are?
• Why aren't U.S. prisons more like Marine Corps boot camp, were every second of the day there are mandatory activities so that at night everyone is so tired they go to sleep until wakeup at 5:30 am? Would this make prisons safer for all?