How to hide the grid on report screen in BI Service

[Mari_bi_user]

Hi everyone!
I'm having a difficulty to get rid of the grid on the issued report screen in BI Service, the part I colored in red in the screenshot.
I think there is not the option to hide or display in the property settings for Wallpart nor Screen.. This BI report has 6 sheets. The top sheet does't have the grid, however, the other 5 sheets have the grid which I don't want.
And weired thing is, once I click a slicer or visuals, the grid disappears. Then, I browse other screen and back to the page, the grid shows up again. Do you think is it a kind of bug? or is there any solution? 

All I did is background transparency is 100%, Wallpaper colors gray, and the screen is "fit to the page."

　

Thank you m(__)m

[lbendlin · Accepted solution]

Likely a rendering issue with your browser.  These seem to crop up quite frequently recently. 

You can raise an issue at https://community.fabric.microsoft.com/t5/Issues/idb-p/Issues . If you have a Pro license you can consider raising a Pro ticket at https://admin.powerplatform.microsoft.com/newsupportticket/powerbi