Hi Nguyen,
Thanks you for update.
We have fixed the mentioned issue “SfPopupLayout is not closing when setting the IsOpen = false with Stays Open” and included the issue fix in our weekly NuGet update version 17.3.0.17 which is available for download (nuget.org).
We thank you for your support and appreciate your patience in waiting for this update. Please get in touch with us if you would require any further assistance.
Regards,
Balasubramani Sundaram.