Version 0.77C has already released a patch that fixes this bug. You can also manually enter a script to fix the issue.
You can press F12 in-game to open the console, then enter this script in the console tab and hit Enter — it will fix your issue immediately.
var independentWeaponIds = [];
if (DataManager._independentWeapons && Array.isArray(DataManager._independentWeapons)) {
DataManager._independentWeapons.forEach(function(weapon) {
if (weapon && weapon.baseItemId) {
independentWeaponIds.push(weapon.baseItemId);
}
});
}
$gameNumberArray.setValue(66,independentWeaponIds);
var independentArmorIds = [];
if (DataManager._independentArmors && Array.isArray(DataManager._independentArmors)) {
DataManager._independentArmors.forEach(function(armor) {
if (armor && armor.baseItemId) {
independentArmorIds.push(armor.baseItemId);
}
});
}
$gameNumberArray.setValue(67,independentArmorIds);
QJ.MPMZ.Shoot({
img:"null1",
existData: [
{ t: ['Time', 60] }
],
moveJS:[
[15,9999,"DataManager.cleanupIndependentDatabaseItems();$gameParty.cleanupIndependentPartyItems()"],
[25,9999,"$gameNumberArray.value(66).forEach(function(id) {$gameParty.gainItem($dataWeapons[id], 1)})"],
[25,9999,"$gameNumberArray.value(67).forEach(function(id) {$gameParty.gainItem($dataArmors[id], 1)})"]
]
});