When processing multiple objects at once in malbers AC, there is an error where the properties of the last selected object are set in common. For example, when disabling multiple objects by multi-selecting them, the malbers tag of each object is changed to the tag of the last selected object.
Usually, if you buy something from the asset store, the best way to get support is to contact the author of that item through their support contacts.
Malbers provides an email address and a discord link, some other ways to contact.