I am able to successfully implement LightCells for my project. However, I have a page with Page Header (bottom) border that runs across 100 columns (say). After I handover the same worksheet to LightCellsDetailsDataProvider implementation, the data is filled in correctly. But, the Page Header (bottom) border is truncated to only grid length (i.e the header (bottom) border length is cut to total width of the grid displayed instead of original width of the Page Header (bottom) border).
Hope, I explained the issue correctly.
Please let me know if I am missing any config here ?