I sent some USDT-SPL from Huobi (HTX) directly to my main Solana address. DXu4QfQa3LdVp6ZTw1u7odR1rV95rUiR8XWtUw2yCWv8
This seems to have invoked a program to create a USDT-SPL token account, which is owned by the main Solana account. GoLQ6WEKR4kvbGGwG3uC1HKpsWWuR8WzYfWz2iJp18kx
This newly created token account now shows as $0 USDT balance and $325 USDT holdings, and owns another token account which shows as $325 USDT balance and $0 USDT holdings. Ddd4eKySysqfS9d8ix7BDxs8CXrm8puVbRqVF9gtaydA
Looking at my other token accounts I see that the difference is that they are associated accounts (where this one is non-associated) and they do not further contain other accounts, but contain tokens.
When I look at my wallet, I see that the supposedly non-associated account always appear as my default USDT-SPL token address, so why is it non-associated I still do not understand.
Two questions - is it possible to move the tokens from the third layer account, to the USDT-SPL account? And is it possible to make it an associated account?
In other words - are these USDT tokens stuck or can they be obtained somehow?