[4.26] Unable To Launch Or Deploy iOS Project (Install/Verification @ 40% Failed) - Desperately Need Help

[MC_Stryker]

Hey Guys,

I am having a serious problem where I am unable to deploy an iOS project to the device. This is happening to 2 separate projects that I have been working on and I can’t seem to find a concrete answer or solution to get past this. This appears to be caused from a number of issues from the wrong bundle identifier to invalid certs. It’s unfortunately holding up very important work so I was hoping someone in the community or staff can help assist me.

The issue I’m facing is that I am unable to successfully deploy a development build via Windows 10 to my iPhone 11 (Unlocked) and receive the error launch failed when it hits 40% during the verification process. I am able to successfully package the build using Shipping/Distribution and upload it to the App Store to test via TestFlight but when it comes to taking a packaged Development build and deploy the IPA via the iPhone Packager or when attempting to launch from the editor, I hit this error and am unable to test.

[DD] Trying to connect to mobile device running iOS ...
Checking 'Matthew's iPhone' with id 00008030-000270582169802E of type iPhone12,1 against -device '00008030-000270582169802E'.
[DD] Transferring IPA to device 'Matthew's iPhone' ... 
[DD]  ... Transfer is 10% complete at phase 'TransferringPackage'
[DD]  ... Transfer is 20% complete at phase 'CopyingFile'
[DD]  ... Transfer is 30% complete at phase 'CopyingFile'
[DD]  ... Transfer is 40% complete at phase 'CopyingFile'
[DD]  ... Transfer is 50% complete at phase 'CopyingFile'
[DD]  ... Transfer is 60% complete at phase 'CopyingFile'
[DD]  ... Transfer is 80% complete at phase 'CopyingFile'
[DD] Installing IPA on device 'Matthew's iPhone' ... 
[DD]  ... Install is 5% complete at phase 'CreatingStagingDirectory'
[DD]  ... Install is 20% complete at phase 'InspectingPackage'
[DD]  ... Install is 40% complete at phase 'VerifyingApplication'
Install \ Update of "IL_App.ipa" failed with Unknown error 0xE8008029 in 16.95 seconds
[DD]    

As a note, I’m running on Windows 10 and have a VM setup with macOS Big Sur to handle remote building. I’ve seen countless posts (links below) where many users have encountered this.

iOS Launch failed

iOS IPA Automation Tool Terminated, Stops at 40%

IOS problem's Game builds & Transfer's fine but fails on install 40%...

.ipa will not install to device (iOS)

IOS Build Failed During Installation

Launch/Build on iOS failed to install

Can't deploy blueprint project from iOS to Windows

I fell back to installing the IPA using iTunes 12.6.3 (iTunes 12.7 removed the ability to do this) and all I get from my phone is “Unable to install”. I think this is a separate issue but it’s hard to tell, but it seems to get further than using UE to launch. What could be causing the second issue? Is it settings? I noticed a while ago that despite having an iPhone 7 running iOS 10 (back then) that I still had to fall back to legacy build settings in order for it to work in the past.

IOS Build Failed

I really could use some help so I can test these projects out further so any help would be appreciated. Thanks!