Created attachment 125248 [details] An image of a defective spreadsheet. The grid has weird omissions on some sheets imported in .xls or .ods formats. An example is attached. I do not know how to create spreadsheets that will have this problem.
Please test with the option: Menu/Tools/LibreOffice calc/View - Visual Aids - Grid lines -> show on colored cells.
Perhaps there are white borders around these cells? Try selecting them and press Ctrl+M to clear their formatting.
(In reply to m.a.riosv from comment #1) > Please test with the option: > Menu/Tools/LibreOffice calc/View - Visual Aids - Grid lines -> show on > colored cells. That cured the problem. Thank you.
Thanks Donal, resolved as not a bug.