Did you create HSB files of all your custom samples / libraries?
HALion uses the .hsb (“HALion Sound Bank”) format to provide an archiving format that includes both Program files (.fxp) and the sample files the Programs reference.
True for HALION 6
Loading HALion 3 Programs
You can load HALion 3 presets from HSB container files, VST Sound files, or FXP/FXB files. To be able to load presets from HALion 3 HSB files or programs that are contained in VST Sound files, the HSB…
Loading Files from HALion 3
You can load FXB and FXP files from HALion 3. These files can be located in a directory on the file system or inside an HSB container file. HSB container files must be registered in the MediaBay…