GBArunner2 won't start up pokemon rom hacks

[GBAtemp]

Hi.
I recently downloaded GBARunner2 on my r4 gold flashcart, so i can play .gba files on my ds.
However, GBArunner2 doesnt seem to want to start up(?) the the rom hacked files, I.e. Pokemon Glazed, Pokemon Gaia and such. All im left with is a white screen after the gba startup.
It does, however, start up regular pokemon fire red.
Anybody know what the issue might be?

Source: https://gbatemp.net/threads/gbarunner2- ... ks.623883/