I have a CALC sheet that uses macros to perform requisite functions - via Buttons. After updating to 6.3.? recently (around 2019-08-13), when I open the sheet, all of the buttons are "shimmering" and I cannot enter anything into the body of the sheet. No changes have been made to the macros for a couple of years.
seems to be a duplicate of: Bug 121963 - button flashing - mouse wheel zooming breaks *** This bug has been marked as a duplicate of bug 121963 ***