Funding Native Mint: Sum of account balances before and after instruction do not match

Question

I'm trying to fund a Native Mint token Account from a PDA and then Sync it like so.

    **(funder.try_borrow_mut_lamports()?) -= excess_sol;
    **(wrapped_sol_escrow.try_borrow_mut_lamports()?) += excess_sol;

    anchor_spl::token::sync_native(CpiContext::new(ctx.accounts.token_program.to_account_info(), 
      anchor_spl::token::SyncNative{ account: wrapped_sol_escrow.to_account_info() }))?;

But this gives "Sum of account balances before and after instruction do not match"

Answer 1

I asked a similar question recently.

You need to transfer the balance at the very end of your transaction, or at least after any Cross Program Invocation.

See this github issue that explains why.