kingdom hearts chain of memories 60 fps crashes the game

Hey there,

So I just installed latest rpcs3 build (9/06/2018) and played kingdom hearts chain of memories.
I installed a clean version of cheat engine and then added the mod listed manually.

1005C7C4B    0      byte

once i start the game it shows that  the value is 1 but once i change it to 0 or try to enable the mod the games stops working the the value becomes ????

please note that I have chosen kingdom hearts from the cheat engine app and haven't done any changes.
Im also using vulkan gpu.

Thanks