Can't pick up personal teleporter items (holdable_teleporter) without /give as Pickup_Holdable calls a checker function at the beginning that does the following:
if (ent->flags & 0x1000000) {
return 1; // allow Cmd_Give_f to give whatever item is desired
}
if (ent->item->giType == IT_HOLDABLE && ent->item->giTag == HI_TELEPORTER) {
return 0; // RIP my precious personal tele, can't pick you up without cheats :sob:
}