Install Brush Pack EXE

Today I bought a bundle brush pack. Downloaded it and installed it. Go into Painter 2021 and they are not there to choose from. I went to the other brush versions in the selector  "Painter 17 (18, 19, 2020, ect.) Brushes" and they are not there. I tried installing with Painter closed, again open. I've rebooted my computer.

One of the brushes in this pack that I don't have and is a single word is "Wedding". I went to a DOS prompt and search C:\ and it's subdirectories for *wedding*.nib (and *.brushcategory). I couldn't find it.

I don't know where they are or why this always seems to be a hassle when using EXE installs for brushes.

Does somebody know how to get this installed and in my 2021 selector list? I have time today to play with the new brushes.

Thank you in advance.