Greetings from Syncfusion.
We have validated your query and we are able to reproduce the reported issue in Android platform(188.8.131.52 version). We have fixed the reported issue in our updated version (184.108.40.206). So please upgrade to mentioned version to resolve this problem.
We have modified the sample with an updated version. Please find the sample from the following location
Please get back us, if you have any concern.
Muneesh Kumar G.