Cheat Engine

[Question2]

Im trying to change the quantity of an item in a unity engine game called "Elin", and this is normally a simple process for other games...e.g. i have a stack of 92 items, i just search for "92" and change the quantity of the stack to narrow down the address.

But for some reason, that doesnt work for this game. I always get a wrong address or no address at all. I've tried binary, byte, 2 bytes, 4 bytes, 8 bytes, float and double.

Any ideas why it is doing this?

Edit : I also tried using the mono dissector and searching for "ticket_furniture" (the internal ID of the item i am trying to change the quantity of), but cheat engine just freezes forever, waiting for 10+ minutes does not cause it to unfreeze.

[Question2]

Anyone?

[ParkourPenguin]

Moving around items can cause the memory backing them to be moved around as well, invalidating scans. Take some consumable item, search for the initial value, then only unchanged value scans and "decreased value by 1" scans as you use the consumable. The memory probably won't be reallocated.
After you find that, you can find other items by looking at shared code. Find what instructions access that address (or addresses near it) and they might access other items' addresses.

It could also be obfuscated- e.g. xor the real value with some key before storing it in memory.

Regarding the mono dissector, don't search for item IDs like that. The mono dissector gives you information on how the game is structured- it won't give you much information on the implementation.
The search function has terrible performance. You're better off looking through classes and methods manually. Or wait for a while (could be half an hour) to export everything to a text file and use some text editor to search through it.