Crash on 11.15.0 because of FPRTraceBackgroundActivityTracker.m

[sgharraph]

Description

We started to see background crashes after updating to 11.15.0. here is the crash trace:

# Crashlytics - Stack trace
# Application: com.driivz.mobile.EVgo
# Platform: apple
# Version: 10.8.0 (27)
# Issue: 2afc271bd499dc6c074bba11ed7713a0
# Session: 60ff861d06ef45468bf56d370abd92f7_DNE_0_v2
# Date: Wed Jul 23 2025 06:08:30 GMT-0400 (Eastern Daylight Time)

Crashed: com.apple.main-thread
0  CoreFoundation                 0x3bd3c _CFXNotificationRegistrarAddObserver + 364
1  CoreFoundation                 0x27a04 CFXNotificationRegistrarAdd + 568
2  CoreFoundation                 0x271c8 _CFXNotificationRegisterObserver + 252
3  EVgoCharger                    0x918c44 __41-[FPRTraceBackgroundActivityTracker init]_block_invoke + 44 (FPRTraceBackgroundActivityTracker.m:44)
4  libdispatch.dylib              0x1aac _dispatch_call_block_and_release + 32
5  libdispatch.dylib              0x1b584 _dispatch_client_callout + 16
6  libdispatch.dylib              0x385a0 _dispatch_main_queue_drain.cold.5 + 812
7  libdispatch.dylib              0x10d30 _dispatch_main_queue_drain + 180
8  libdispatch.dylib              0x10c6c _dispatch_main_queue_callback_4CF + 44
9  CoreFoundation                 0x6cd90 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16
10 CoreFoundation                 0x104f4 __CFRunLoopRun + 1980
11 CoreFoundation                 0x11c3c CFRunLoopRunSpecific + 572
12 GraphicsServices               0x1454 GSEventRunModal + 168
13 UIKitCore                      0x135274 -[UIApplication _run] + 816
14 UIKitCore                      0x100a28 UIApplicationMain + 336
15 EVgoCharger                    0x80e0 main + 6 (main.swift:6)
16 ???                            0x1b1507f08 (Missing)

Reproducing the issue

We see the crash on Crashlytics

Firebase SDK Version

11.15.0

Xcode Version

16.4

Installation Method

Swift Package Manager

Firebase Product(s)

Authentication, Crashlytics

Targeted Platforms

iOS

Relevant Log Output

If using Swift Package Manager, the project's Package.resolved

Expand Package.resolved snippet

Replace this line with the contents of your Package.resolved.

If using CocoaPods, the project's Podfile.lock

Expand Podfile.lock snippet

Replace this line with the contents of your Podfile.lock!

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[rizafran]

Thanks for the report, @sgharraph. This seems related to #14273. Let me raise this to the engineer.