Description

A crash occurs on iOS when deploying the licensee's project using iOS 9 version.

The crash does not occur when deployed to a device using iOS 10 version.

They believe the crash to be related to Planar Reflections and/or Modulated Shadows which are both enabled in their test project. I have attached the callstacks provided by the licensee for further information.

I have filled out the environment field with the crashing device (iPad Pro). The device tested that does not crash is below.

Device: iPhone 5s
OS: 10.0.2
Memory: 16GB
CPU: Dual-Core 1700MHz
GPU: PowerVR Series 6
Model: ME307LL/A
Epic Id: 5065

Steps to Reproduce

1. Download and Open attached Project.
2. Package or Launch On to both iOS 9 and 10 versions.

Outcome Crash occurs when opening the project on the iOS 9 device, but works as expected on the iOS 10 device.

Expected The project should run on both iOS versions.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-40296 in the post.

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Cannot Reproduce
ComponentUE - Platform - Mobile
Affects Versions4.14.2
Target Fix4.17
CreatedJan 6, 2017
ResolvedJul 14, 2017
UpdatedSep 16, 2019