Why You Might Not Be Able to Withdraw
Holding the correct seed phrase but being unable to send anything out is one of the clearest symptoms of a permission-level problem, not a technical bug.
It's usually not a wallet glitch
When every transfer attempt fails or gets rejected despite using what you believe is the right key, the more likely explanation isn't a bug in the wallet app — it's that the key you hold is no longer listed in the account's Owner or Active permission with enough weight to authorize anything.
How this typically happens
This is the exact symptom of the multisig scam pattern: you were given a seed phrase to an account whose permissions had already been reassigned before you ever received it, so your key was never really in control to begin with.
Confirming it
Checking the account's Owner and Active permissions directly will show whether a foreign key is present — if so, that confirms the cause and explains why deposits work while withdrawals don't.