Token validation

BSV-21 tokens are checked by an overlay (an index that confirms each token output is real) before the wallet sends them.

You see	Meaning	What to do
“Your tokens are still waiting to be validated by the overlay. Try again shortly.”	The overlay hasn’t checked them yet.	Wait a few minutes, try again.
“Not enough of your tokens are validated by the overlay to cover this transfer.”	Some of your tokens are validated, but not enough.	Send a smaller amount, or wait.
“The token overlay is not funded, so your tokens cannot be validated.”	The token’s issuer hasn’t funded its indexing.	Ask the token’s issuer.
“The token overlay has no record of this token.”	The overlay doesn’t know this token.	Ask the token’s issuer.
“Could not validate tokens against the overlay!”	The overlay check failed.	Try again later.
“None of these tokens are validated by the overlay, so they were not swept.”	During a sweep, unvalidated tokens were left where they are.	They’re safe at the old address. Try again later.
“Insufficient token balance!”	You don’t hold that many.	Check the amount.