We have a number of spreadsheets. On two of them, the buttons to test that the user has specified valid directories have turned black. I turned on Tools/Forms/Design Mode and deleted the two buttons. I then copied buttons from another spreadsheet into the the one with the black buttons. Everything looked OK. I saved the spreadsheet and re-opened it, but the buttons were black. I went to a spreadsheet with properly coloured buttons, and I copied the Setup sheet to the spreadsheet with the black buttons as Setup1. Setup had Black buttons, Setup1 had proper buttons. I saved the spreadsheet and reopened it, only to find that the buttons on both Setup and Setup1 were black again.
You can see an image of the two spreadsheet here. I have attached a spreadsheet with good buttons and one with black buttons. I’m at a loss as to what’s happening.
You can download a copy of the two spreadsheets from here: