Deconstructing Robo Recall

Has anyone else encountered issues trying to Migrate certain assets to another project. I would assume this is because it comes from a modded package. But a lot of migrated files aren’t use-able or able to be open. (Vector Fields, some particles, materials). Of course the bulk of their materials rely on custom material function which makes the migration process a little more tangled. I spent a few days having to manually rebuild a lot of the files and functions to get things running in a clean package.