itch.io

Hello,

Just tested it, and it's working fine on our end. Unfortunately we can't replicate the issue.

I'm sure you already did this, but just to make sure, this is how to install packs. 

Manual Install:

1. Download the add-on pack (make sure to download the correct version, in this case, Standalone Pack)
2. Extract/Unzip the pack
3. Put the unzipped file (it should have .pack extension) into the "Packs" folder under your main CC2D installation folder

Using itch.io Desktop App:

1. Go to your library
2. Find the add-on pack thumbnail
3. Right click the thumbnail and click install
4. In the install window, choose Standalone Pack
5. For install location, browse for "Packs" folder under your main CC2D installation.
6. Click Install

Can you try installing them again?