Maybe the freeze only lasts a certain time but I did leave it for multiple tens of seconds before deciding it wasn't going to come back (it's impossible to work with that sort of a delay anyway.
The same thing happens when just browsing for the objects, it's OK for the first object but I can't select any more after adding to the design. I can close the application and get prompted to save but I can't really work in this staccato fashion. clicking anywhere does nothing) and outside of the Library Browser, in the main design panel, I see no pointer (though it sometimes returns after switching to other Windows apps). For example, with search, The first time I use the search is fine but after I add the object to my design and go to search for anything else, the library browser seems to freeze allowing no interaction (e.g. The program works well until I try to use the Library Browser to add objects to the design. I'm just starting out in Home Designer 2018 on Windows 10 (a new laptop with 16GB of memory and the latest video drivers.