Wellspring Library Invest Task Times Bugged

I’m on Day 8 of Wellspring Library. In the Task List, I have a task for “Invest in Wellspring Library” that is estimated to last 1.8 hours. 

However, when I go to complete the task, the options I get are:

Incredible Investment: 3hrs 58mins

Token Investment: 7hrs 55mins

There is no option to complete the task that takes 1.8 hours, making it technically impossible to finish all tasks for the day within 24 hours. 

I have noticed this discrepancy for other “Invest in” tasks as well. 

I don’t want to buy SP to bypass all the “Invest in” tasks that have incorrect task times listed. Please help.