Night mode not working on my iPhone 16

I have been using my new iPhone 16 for about 2 weeks now. I tried using night mode on the first week and it worked perfectly, I then tried it today and even with 10 seconds night mode the result was a complete disaster. I tried resetting my phone, taking the case off even updated to 18.3.1 and the result is still the same. I need it fixed as soon as possible

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