Empty cells in Battery 4

Hi there.

Every time I open Battery 4 within Logic Pro - all the cells are empty. The names of the samples are still written (greyed out) but the actual samples are missing. Even if I just close the Battery window and reopen it, without closing the Logic project, the samples disappear. Only the ones from the Battery library stay. It's not saving the path to my own samples it seems. Never had this problem before, only since I bought a new Mac.

I run Logic Pro 10.7.8 on a Mac Studio M1 Max

I can save and load the kit, but it's not loading automatically when I open the Song. I can load it manually every time, but like I said, it disappears when closing and reopening Battery.

Very annoying.

Anybody with the same issue or that would know how to solve this?