Settler Time ? Issue with time of some queued items

Oil Mill, Smoke House, and Snack Stand (maybe others that I havnt seen)

All these buildings show queue times in the 1000s of days.

example of the oil mill 1 oil takes 2 mins 30 but it Also says 18,022 days to complete it ??

https://imgur.com/8aEMVh6.jpg

This should be a well known issue. It has been so for years with several buildings. Extremely annoying for players, but it doesn't seem to bother the developers, so it's ok, I guess :D