Quite a few google results reporting same thing, such as this discussion https://arstechnica.com/civis/viewtopic.php?f=19&t=1479443 https://arstechnica.com/civ

Quite a few google results reporting same thing, such as this discussion https://arstechnica.com/civis/viewtopic.php?f=19&t=1479443 https://arstechnica.com/civis/viewtopic.php?f=19&t=1479443