I saw another thread regarding the same issue (Thread ID : 143932) and you can see that the both were same in screenshots, which was reproduced on your side already. That's exactly what i'm facing on my side now and the sample which I gave you was just to reproduce the rendering problem on production build.
Hope you understand now and please let me intimate regarding this, ASAP.
VNVignesh Natarajan Syncfusion Team April 26, 2019 05:46 AM
Sorry for the inconvenience caused.
We are able to reproduce the reported issue at our end and we have confirmed it is bug. We have fixed the reported issue and fix for the issue has been included in the patch released on April 23rd 2019. So kindly upgrade to latest version (17.1.42) to resolve the reported issue.
Please get back to us if you have further qeuries.