Plugins for Custom Unity Assets are not stored properly in Presets (new style of presets introduced in VAM 1.17).
Whilst a saved Custom Unity Asset preset file (.vap) contains the correct "PluginManager" storable json node, the nodes containing the saved JSON parameters for each plugin are missing.
Tested in VAM 1.20.1.5.
This problem may also exist for other non-person Atom types other than Custom Unity Assets (but I have not tested that).
Whilst a saved Custom Unity Asset preset file (.vap) contains the correct "PluginManager" storable json node, the nodes containing the saved JSON parameters for each plugin are missing.
Tested in VAM 1.20.1.5.
This problem may also exist for other non-person Atom types other than Custom Unity Assets (but I have not tested that).