Оно собралось!

Pf2eDataScrapper/App/ProcessorCollection.cs

@@ -95,6 +95,8 @@ internal class ProcessorCollection
     /// </summary>
     public void SortItems()
     {
+        Items.ForEach(item => item.Priority = -1);
+
         Dictionary<string, int> priorities = [];
 
         while (priorities.Count < Items.Count)
@@ -115,7 +117,7 @@ internal class ProcessorCollection
                     continue;
                 }
 
-                item.Priority = Math.Min(
+                item.Priority = Math.Max(
                     dependencyPriorities.Any() ? dependencyPriorities.Max() + 1 : 1,
                     (int)item.Group * 100
                 );