It happens during the AR Resource Group validation.
Here is the error report (excerpt):
Translated Report (Full Report Below)
Process: Xcode [82031]
Path: /Applications/Xcode 26.app/Contents/MacOS/Xcode
Identifier: com.apple.dt.Xcode
Version: 26.5 (24943)
Build Info: IDEApplication-24943000000000000~2 (17F42)
Code Type: X86-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: com.apple.dt.Xcode [5336]
Date/Time: 2026-06-09 10:15:57.7320 +0200
Launch Time: 2026-06-09 10:15:35.7248 +0200
Hardware Model: iMac20,1
OS Version: macOS 26.5.1 (25F80)
Release Type: User
Bridge OS Version: 10.5 (23P5067)
Crash Reporter Key: D4DE7743-5F95-C03C-002F-E333D57A450C
Incident Identifier: AA0D1ED3-9FE8-482D-B38C-7F28875D19D6
Time Awake Since Boot: 550000 seconds
System Integrity Protection: enabled
Triggered by Thread: 13, Dispatch Queue: AR Resource Group Validation Queue
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6
Terminating Process: Xcode [82031]
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: