Unhandled exception occurred during interop call

[Gautam Jain]

Hello,

I am have .Net MAUI Blazor Hybrid.

In Syncfusion components version 26.1.42 I did not have this issue. Then I upgraded to latest 32.1.25 where I am seeing this issue.

I have a SfRichTextEditor define in my razor file which I am using in BlazorWebView control.

This SfRichTextEditor is of type Markdown (EditorMode).

Inside the razor file I have c# code that calls editor.SaveSelectionAsync and editor.RestoreSelectionAsync which throws the error Unhandled exception occurred during interop call.

In between the above calls I use editor.ExecuteCommandAsync(CommandName.InsertText, "Some text"); to replace some text.

Request you to fix this issue at the earliest. The same code wasn't crashing before upgrading to 32.1.25.

Regard

[Kokila Poovendran]

Hi Gautam Jain,

We have validated the reported issue and confirm that it has already been addressed. The fix will be included in our upcoming weekly release, scheduled for mid-March 2026.

Thank you for your understanding.

[Gautam Jain]

Fantastic! Will keep track and try. Superb service!

[Gautam Jain]

Fantastic! Will keep track and try. Superb service!

[Archana Jayakumar]

Hi Gautam,

Thanks for the update. We will inform you about the fix details as promised.  

Regards,

Archana

[Kokila Poovendran]

Hi Gautam Jain,

We are glad to announce that our Essential Studio® 2026 Volume 1 main Release v33.1.44 is rolled out and is available for download under the following link.

Essential Studio® 2026 Volume 1... | Announcements Forums | Syncfusion

We have also included the fix for the reported issue "SfRichTextEditor (Markdown mode): SaveSelectionAsync / RestoreSelectionAsync throw “Unhandled exception occurred during interop call” after upgrade to v32.1.19" with our Vol 1 2026 main release version 33.1.44. Please upgrade your package to the latest version to resolve the issue from your end.

Sample: https://blazorplayground.syncfusion.com/embed/hjhRNgCcrmgqGrjp?appbar=true&editor=true&result=true&errorlist=true&theme=fluent2

[Gautam Jain]

Thanks. I confirm that this is fixed.

Regards,

Gautam Jain

[Archana Jayakumar]

Hi Gautam,

You are welcome. Please get back to us if you need further assistance.

Regards,
Archana