Lock screen briefly inverts colors?

I have the iPhone 11 (just got it in January) and this problem started happening to me yesterday. It initially started happening every time I opened any of my apps, it would flash inverted colors and then go back to normal. I tried restarting my phone, which then made it only when I would raise my phone and the screen would light up in inverted colors and then go back to normal colors. Nothing seemed to work (turning all the settings on and off for inverted colors). After reading other comments I saw one about dark mode possibly having a glitch with the smart colors, so I switched to light mode and it solved the problem until I went back to dark mode, which is annoying because I preferred dark mode. So what fixed it for me was: switch to light mode, restart your phone, and then switch back to dark mode and it didn’t come back! Hopefully it stays normal :)

Me too have the same issue in my iPhone 7. I just updated my OS to 13.3.1 and gone through some settings and reverted everything back. After sometime when I tried to unlock it seems the wallpaper color is inverted for less than one sec. As per someone's comment I reset my network settings. Now it seems to be gone.

Did NOT try a Network Reset as I need to keep that info.

a reboot of the phone fixes this EVERY time until I next turn-on EITHER "classic invert" or "smart invert" then it is always there there until the next reboot. When does 13.13.2 come out? I hope it has a fix for this bug.

i have the same issue as well. it started after i played around with the 'Smart Invert' setting on my iphone11 (13.3.1) yesterday. even after disabling the 'Smart Invert' setting, the x-ray colors will show very briefly on my lock screen when i raise-to-wake the phone. looks like a bug. 'Reset network settings' fixes the issue for me though.

Just got my new iPhone XS from ATT and within the first week I noticed that on the colors would briefly invert on the lock screen for a quick second only to turn back. I find this really annoying. Luckily I got a screenshot like when it Inverted but it’s not letting me upload the picture on here for some reason. But Apple can you do me a favor and fix this cus this ain’t it.

I think there’s a bug with the Smart Invert Colors and the Dark Mode. I noticed that if you turn on Smart Invert Colors and then off while you’re in Dark Mode, you get the bug that makes your lock screen briefly invert colors. There is another way to fix it which is just to use Light Mode instead.

Same here, resetting network settings worked. This problem occurred after I played around with the invert selections in the Accessibility section. Probably a bug that doesn't undo the effect on unlock after switching from invert to regular.

I did a hard reboot and reset my network settings - that worked. For about a day. Now the issue's back. Hope Apple solves this in next patch it makes the perceived performance of the device feel awful.

I woke up this morning and my phones been doing it all day. I recently connected to a new WiFi network that I didn’t know but hey it was free and I believe it’s a little hat trick people are using to tweak your setting. Lemme know if ya get anything on it and thanks for the tip

I have the iPhone 11 Pro Max with iOS 13.3.1 installed. 

This is what happened to me- Classic Invert Colors was on and Auto-Brightness was off. 

I never had this problem- Lock screen briefly inverts colors when screen wakes. Until I reenabled Auto-Brightness for the first time. Classic Invert Colors was still on at this point.  Then I noticed this problem happening. 

I disabled Classic Invert Colors. Thinking this would fix it, no. (Did not do a hard reboot here)

Then I tried disabling Auto-Brightness and did a hard reboot. 

Haven’t seen it sense! I also tried to re-enable “Auto-Brightness” and “Classic Invert Colors” after the hard reboot. To see if it would start happening again. Nope hasn’t started again!!

It happened to me and even I was confused initially. Now am able to consistently reproduce and get away from this issue.

Seems like a bug with enabling either "Invert/Smart Invert colors" even after you turn this off this will prevail. A normal hard reset would fix this issue and it won't surface back until you do the enabling of those switches again.

Press vol+ once and Vol- once and press and hold the power button until the phone restarts. I tried and tested this thrice and works like a charm. Hope this will be of help to someone.

It did this to me as well after I was messing with the invert settings and it didn’t fix until I shut down my phone but after that it stopped. I’m guessing it’s just a bug that came along with this update.

I had this same problem because I had turned on invert colors but I turned it off. I turn my phone completely off and turned it back on and it doesn’t show the inverted colors anymore. It would show it for a second and then it would go back to normal. Now it doesn’t