Reported
Reason: ""Currency out of sync" error when you use the currency".
Checked by myself.
You can't use the diamonds for anything after you spend all of them. They just decrease as normal and when you try to choose something which requires diamonds, it will just go out of sync.
Proof:
Emulator, LDPlayer 9 Version 9.0.67(9) (Android 9) rooted + patched