Hi Peng,
Thank you for contacting Syncfusion support.
We are unable to reproduce the reported issue with the details provided in the incident. We have created the sample in .NetCore 2.2 with Essential Studio 17.1.0.50 version as provided in the update and shared the same in the following location,
Note: Kindly refer the Scripts, CSS files and the Nuget packages of same version in your project
Please try this and revert us with the modified sample in which the issue could be reproduced and the PDF document if you are still facing the issue. Also revert us with the following machine details
Operating System:
System Bit Information:
System Culture Information:
Essential Studio Version:
RAM capacity:
Platform:
Browser Details:
These details will be helpful for us to investigate further on your issue and assist you better.
Regards,
Akshaya