Since upgrading to iOS 18.0 our trust certificate isn't working on iPad 9th Gen

Kinda the same for me - bought an iPhone 16 and it’s not showing up in trust settings after installing it. On my iPad Air 4 it doesn’t show though. As a sanity check I removed and reinstalled the profile on my iPad on iPadOS 18 and it worked. The same certificate continues to not show on my iPhone. I also tried another certificate that is known to work and it doesn’t show on my iPhone either.

With this info, please file a Feedback Report with Apple.

Same issue

Trust manually installed certificate profiles in iOS, iPadOS, and visionOS - Apple Support

Buddy, 我的問題如下圖所示,那裡總是空白的。

更新到iOS 18.0.1後，證書信任設定中沒有顯示任何證書!

My question is shown in the figure below. It's always blank there.

It’s not shown any certificates in Certificate Trust Settings after I update to iOS 18.0.1

Me too. Same cert works on iOS 16.7.10, iOS 17.6.1 and iPadOS 18.0

But not on iOS 18.0

Also tried regenning a new test root on macOS Sonoma and installing using Configurator. No difference.

It’s broken - I’ve reported it by Feedback - suggest you do the same? Strength in numbers as it’s a vital security flaw.

[Edited by Moderator]

Resetting the iPhone to factory defaults worked for me.

The option "Settings -> General -> About -> Certificate Trust Settings -> ENABLE FULL TRUST"

is back again.

Still waiting for a fix. Hopefully in 18.2

Are you installing the certificates manually or via MDM?

In my case, manually and via Configurator to unsupervised phones and iPads

Same!