The addons works best on meshes containing quad faces - that is, faces with 4 edges each. This doesn't mean your whole mesh has to be made of quads, as you can operate the addon on a sub-selection of faces.  Other mesh topologies may work but are untested.

You can either contact me through the website or contact me through twitter @markkingsnorth.

This may be related to outstanding issue #1200 with Blender/Animation Nodes which is still being worked on.  

Current workarounds for large animations are to try rendering from the command line.  Make sure your work is regularly saved in case you encounter this bug.

Partially Loaded

Fully Loaded

There appears to be an issue with the current version of Blender when thumbnails are loaded too quickly the first time: Try clicking the 'Refresh Libraries' button in the Edit-> Preferences menu, and then clicking a thumbnail but waiting until all the images have loaded.

If you're still having problems,  contact me through my Blender Market page.

Try making sure that "Auto-Save Preferences" is checked in the preferences menu, but do get in touch if you have further problems: