From ed60579ba3cf86b44d90d65648fd8c8dbe5c34ba Mon Sep 17 00:00:00 2001
From: Ben Olden-Cooligan <ben.cyanfish@gmail.com>
Date: Mon, 23 Dec 2024 13:38:59 -0800
Subject: [PATCH] Apple: Fix chaining callbacks

---
 NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs b/NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs
index e7fd57d18b..13d1df11c5 100644
--- a/NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs
+++ b/NAPS2.Sdk/Scan/Internal/Apple/DeviceOperator.cs
@@ -128,8 +128,10 @@ public override void DidScanToBandData(ICScannerDevice scanner, ICScannerBandDat
             _buffer = null;
             var tcs = new TaskCompletionSource<IMemoryImage?>();
             // Ensure sequencing is maintained when writing to the callback even if copy tasks finish out of order
-            _writeToCallback = (_writeToCallback ?? Task.CompletedTask).ContinueWith(async _ =>
+            var previousCallback = _writeToCallback ?? Task.CompletedTask;
+            _writeToCallback = Task.Run(async () =>
             {
+                await previousCallback;
                 var image = await tcs.Task;
                 if (image != null)
                 {