From c3ffb1076240f2d0b59755398117bf45e8e55871 Mon Sep 17 00:00:00 2001
From: Max Charlamb <44248479+max-charlamb@users.noreply.github.com>
Date: Fri, 20 Feb 2026 11:21:48 -0500
Subject: [PATCH] UEWatsonBucketTrackerBuckets is not availalbe on non-windows
 platforms

---
 .../Data/Thread.cs                                           | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Thread.cs b/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Thread.cs
index 05fba0fc545ff8..ccdc5017b5d5b8 100644
--- a/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Thread.cs
+++ b/src/native/managed/cdac/Microsoft.Diagnostics.DataContractReader.Contracts/Data/Thread.cs
@@ -33,7 +33,10 @@ public Thread(Target target, TargetPointer address)
 
         // Address of the exception tracker
         ExceptionTracker = address + (ulong)type.Fields[nameof(ExceptionTracker)].Offset;
-        UEWatsonBucketTrackerBuckets = target.ReadPointer(address + (ulong)type.Fields[nameof(UEWatsonBucketTrackerBuckets)].Offset);
+        // UEWatsonBucketTrackerBuckets does not exist on certain platforms
+        UEWatsonBucketTrackerBuckets = type.Fields.TryGetValue(nameof(UEWatsonBucketTrackerBuckets), out Target.FieldInfo watsonFieldInfo)
+            ? target.ReadPointer(address + (ulong)watsonFieldInfo.Offset)
+            : TargetPointer.Null;
         ThreadLocalDataPtr = target.ReadPointer(address + (ulong)type.Fields[nameof(ThreadLocalDataPtr)].Offset);
     }