Libreoffice Calc now opens all .csv documents with white text. 

I tried to fix the problem by going to Preferences-->LibreOffice-->Application Colors and then in the Spreadsheet section changed the Text dropdown to black, and hit Apply, but this had no effect. 

I can fix the problem by manually selecting every cell and then changing the text color from the toolbar, but that only works for the single document being viewed.

I'm using the "LibreOffice Dark" Scheme, with the "Automatic" dropdown set to Dark, in case that matters.

Reverting to version 7.6.4 solves the problem (text is black when the .csv document opens), as expected.