Does anyone here know why this happened?

[uneng]

I had issues with USDT withdrawals only. But it was because I was choosing the wrong network to cashout my funds, so the transaction just wasnt launched by the casino, as it presented an error message. I was not used to deal with USDT, so I didn't pay attention to this detail, but thankfully the error message displayed, because it worked as a security measure, so the funds wouldn't be lost in a misleading transaction.

Always check at the receiver side where you are moving your funds to which network they demand from you to be used before launching your transaction. I don't know if that is the issue you are facing, but for the future this tip may be useful.

[Sunderland]

Maybe the problem is not as complicated as we think, it could also be that their address/hot wallet was empty when OP made the withdrawal.
Or it could be that the dev or admin of that platform is doing something with their transaction system at that time.
As far as I know, only withdrawals with ERC20 contract address are usually rejected/cancelled by several platforms due to the fee issues.

[FinneysTrueVision]

Tron accounts need to pay a 1 TRX fee when they are first created, otherwise they don’t technically exist. They also need to maintain a balance of at least 0.1 TRX to be considered active. If you were trying to send to an address that had never received anything or had an empty balance, it is possible that the casino didn’t recognize it as a valid address.

[redsun114]

Tron accounts need to pay a 1 TRX fee when they are first created, otherwise they don’t technically exist.

I think the OP already know this and the first wallet that he used, must be his main wallet that he is using for a long time now because he keeps on insisting it but it's just that the funds won't came in, so he just used another wallet and the finally the funds have now deposited into it. There must also be an instruction written on the wallet that we use, same when I use a wallet for a different coin before. They've also asked some fees but it was only more expensive than in TRX. I have no choice that time because I also needed the funds badly.

They also need to maintain a balance of at least 0.1 TRX to be considered active. If you were trying to send to an address that had never received anything or had an empty balance, it is possible that the casino didn’t recognize it as a valid address.

This is not the casino's fault but it's about the wallet, so we should not put the blame on them, if we do.

[Mate2237]

If the address was copied correctly from the wallet then it might be that the casino network was not strong enough at that time but that is not also possible. But I still think that you didn't copied the address correctly and probably some of the letters were cut off. And that is why it was written failed and probably you have copied the address in a save place to use and frequently copying it from there.

So as you copied the new one which everything complete, then it went through and transaction was confirmed. Just crossed checked your address again and try it later as Charles -Tim said.

[Dr.Bitcoin_Strange]

Well, I have had a similar experience on bybit exchange. I know that centralized exchange doesn't have any connection with the casino that you are talking about, but the common relationship here is that what you were trying to do was a transaction via the blockchain network, and it was still a withdrawal I was about to do then. Normally, I love making my USDT withdrawals using the AVAX chain, and I have been using this particular address for a long time now, but that day, when I tried to withdraw with the same address, it didn't work, and I kept on trying. After multiple tries, it finally worked. I just felt it was an internal problem on the exchange, which possibly could have also been an internal problem at the casino at that moment.