It is possible that USDD/DAI/USDC/USDT did not have a harvest for more than 36 hours. The user interface may say that it was 1 day ago, but this could be due to the extra fees taken by Ethereum harvest. It is best to wait a couple of hours and then check again to see if the harvest has resumed. It is also important to make sure that the wallet is set up correctly and that the correct amount of funds is available for the harvest. If there are any issues, it is best to contact the customer service team for further assistance.