Since last update it is not possible to scroll in the library of workouts. So you can only see a few workouts per folder depending on the screen size.
this is also the case when trying to navigate the workouts folder with the zwift play controllers on PC.
it is possible to use a mouse to scroll on PC however.
I’ve seen this a few times while going to my custom folders (I use ATV), only a few of the WKO’s are in each folder. I just end the program & restart and everything is there.