Thank you! This solved it (actually, synchronous load also does the trick).
In case anyone is wondering how to do this in C++ (which was my case):
Synchronous Load:
Deference the TSoftClassPtr with the function SynchronousLoad()
Asynchronous Load:
You may find this post useful.
It explains how to use TSoftClassPtr::ToSoftObjectPath to Obtain an FSoftObjectPath and use it as described in the second half of this documentation.