Sample installer only extracts the first part on Intel Macs

[jeffd]

I have a ~6 GB library split into four .hr parts, installed on first launch with installExpansionFromPackage. It works fine on Apple Silicon and
Windows, but on Intel Macs it only installs about the first part (~a quarter of the samples) and then says it finished successfully.

Already ruled out: plenty of free space, all parts intact and in the same folder, tried internal and external drives, 16 GB RAM, current HISE.

Its an old laptop I got that i can test intel mac on. Plugin itself runs perfect if I have a folder with all the .ch1 extracted on it.