In Hatch Embroidery 2, custom hoops were associated with machine models.
As Hatch Embroidery 3 only has machine brands (except for Janome and Elna which still have machine models), custom hoops created in Hatch Embroidery 2 will appear for all other brands, including any custom brands created (except Janome and Elna).
Please note these hoops can be removed from brands they are not associated with.