I have had this failure happen twice now. Others have had it happen several times a day. A fix landed in updates and the report was closed but the problem persists in spite of the fix How does one get a bug report reopened?
PS: Thanks to Fedora Forums for going secure.
HP ZBook 17 G2 i7 32GB Toshiba 512GB SSD Fedora 26 (Tesseract)
HP ZBook 17 G2 i7 16GB Corsair Force LX 256GB SSD Fedora 26 (Antares)