Originally published on xroot.dev . It is the most common support ticket in crypto, on every chain, and on Solana it has a specific mechanical cause. Someone is given an address — a deposit address, a program-derived address, an account a dApp is about to create — and sends SOL to it before the account exists. The SOL arrives. The address now has a balance and no account behind it. And when the program that was supposed to create the account finally tries, the system program refuses, becaus...