Fallback when resizing failed.

backend/src/Squidex/Areas/Api/Controllers/Assets/AssetContentController.cs

@@ -21,6 +21,7 @@ using Squidex.Infrastructure.Assets;
 using Squidex.Infrastructure.Commands;
 using Squidex.Infrastructure.Log;
 using Squidex.Web;
+using ThirdParty.BouncyCastle.Asn1;
 
 #pragma warning disable 1573
 
@@ -200,10 +201,18 @@ namespace Squidex.Areas.Api.Controllers.Assets
                         }
 
                         using (Profiler.Trace("ResizeImage"))
+                        {
+                            try
                             {
                                 await assetThumbnailGenerator.CreateThumbnailAsync(sourceStream, destinationStream, resizeOptions);
                                 destinationStream.Position = 0;
                             }
+                            catch
+                            {
+                                sourceStream.Position = 0;
+                                await sourceStream.CopyToAsync(destinationStream);
+                            }
+                        }
 
                         using (Profiler.Trace("ResizeUpload"))
                         {