don't use yield return

Pilz.Plugins/PluginManagerT.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Reflection;
 using System.Reflection.Metadata.Ecma335;
@@ -30,8 +31,12 @@ namespace Pilz.Plugins
         /// <returns></returns>
         public IEnumerable<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>> LoadPlugins(string[] paths, params object?[]? parameters)
         {
+            var results = new List<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>>();
+
             foreach (var path in paths)
-                yield return LoadPlugin(path, parameters);
+                results.Add(LoadPlugin(path, parameters));
+
+            return results;
         }
 
         /// <summary>
@@ -42,8 +47,12 @@ namespace Pilz.Plugins
         /// <returns></returns>
         public IEnumerable<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>> LoadPlugins(Assembly[] assemblies, params object?[]? parameters)
         {
+            var results = new List<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>>();
+
             foreach (var assembly in assemblies)
-                yield return LoadPlugin(assembly, parameters);
+                results.Add(LoadPlugin(assembly, parameters));
+
+            return results;
         }
 
         /// <summary>
@@ -53,11 +62,15 @@ namespace Pilz.Plugins
         /// <returns></returns>
         public IEnumerable<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>> LoadOwnPlugins(bool listenAssemblyLoadContext, params object?[]? parameters)
         {
+            var results = new List<PluginLoadInfo<TPluginInterface, TPluginRuntimeInfo>>();
+
             if (listenAssemblyLoadContext)
                 AppDomain.CurrentDomain.AssemblyLoad += CurrentDomain_AssemblyLoad;
 
             foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
-                yield return LoadPlugin(assembly, parameters);
+                results.Add(LoadPlugin(assembly, parameters));
+
+            return results;
         }
 
         /// <summary>