For Relay Vaults, withdrawals currently can’t be processed, due to collateral being deposited into Aave WETH market for yield. In any scenario, depositors will be able to withdraw their full position.
If there are no updates from Aave soon, we will begin a process to help users manually withdraw. There is only ~$1M total deposited, and only a portion of that is in Aave, so any shortage is easily covered.