I even used your sample template directly, and it still has the same issue. https://github.com/stimulsoft/Samples-R ... eLists.mrt
I have attached an image showing how I am using it. Can you check if I am doing something wrong?
We need more time to investigate this issue thoroughly.
But the best way for Blazor WASM is to use the Blocly script to change the style.
Please check the attached report.