The items on a reading plan are not always active ... that is to say that clicking on them does not take you to the relevant place in the resource.
This might be by design for readings marked as read (not sure why though) ... but it should not be the case for readings that are yet to be read.

Even though you cannot see it, my mouse is hovering over the blue 'Pages 855-860' for Monday's reading (I am actually ahead [:O] ). Although the text is blue (suggesting a hyperlink) it should turn orange and give a popup ...

Hovering on Apr 29 link ( or any below will work as normal). Hovering on the Monday reference (or any above that) does not produce an action.
I do not know if this is related to the text change from weekdays to actual dates ...
I am reading NICOT Romans (Moo), and using the latest Beta ( 5.2.1.0067 ) on a MBP.