Ethereum developer Péter Szilágyi announced that there was a bug in the latest version of The Merge that caused data loss.
While The Merge is considered the most anticipated upgrade at the moment, it is not free of bugs. Ethereum developers, however, react quickly to the problems.
The software developer Péter Szilágyi wrote on Twitter that he found a regression that leads to a corrupted state. He explained that it was probably one of the pull requests merged with the new storage model or online pruner.
In another tweet, he said that the problem will probably affect those who are running the version, as their database will be corrupted and data will be lost. He added that the problem of data loss occurs during shutdown, which is why it could not be found during the tests.
The developers managed to provide a solution after a day. Go Ethereum has released a hotfix to fix the bug. The team advised those who updated to roll back and run again.
After the patch was released, the developer advised to wait until the builders are ready. This way you can be sure that you are on the good version. The developer apologized on Twitter for missing the issue during the testing phase. He promised to find out how to conduct better tests. He also thanked those who helped solve the problem.
Apart from the economic impact, The Merge forces miners to make a choice. Some say that a solution for miners could be a proof-of-work Ethereum hard fork. On the other hand, some mining pools have shown that they are switching to staking.