https://forums.unrealengine.com/t/remove-material-references-too-many-materialparametercollections-limitation/751416
Remove Material references too many MaterialParameterCollections limitation - Feedback & Requests -...
Jan 17, 2023 - Currently materials are limited to using 2 Material Parameter Collections. This is a problem if you are using multiple products to change your material....
too manyremovematerialreferenceslimitation