My Co-Workers Week View not showing category time values

[George Warren]

We have had it noted that when trying to view the time recorded by co-workers, that only time with a sub category is showing in the week view.
It shows in the total but you aren't able to see the breakdown of what time is in what category. 


VS the personal view where this shows up fine:



We have tried to make time logging as simple as possible for staff so only needing to pick a sub category where we need that extra level of detail, otherwise just logging a category. 
We did find using the time spent part of the activities required a sub category so ended up creating a dummy sub category for that where it matched the category.  Hence why the green and blue have the same text value in the image, green being category and blue being sub category. 

I assume this is a bug as it seems to work fine in the personal view, so please can this be amended?