we found out this morning that somehow the wallet did a rollback of 4844 blocks and reconnected 94 blocks to what it thinks was a better chain. im not sure how it determined this, but it is clearly wrong and the code itself will be looked into. until then please upgrade to wallets 2.4.5 (will be posted in a second) which contain a few fixes plus a fix for this blockchain error
FYI:
Chain Reorganization
The term "blockchain reorganization" is used to refer to the situation where a client discovers a new difficultywise-longest well-formed blockchain which excludes one or more blocks that the client previously thought were part of the difficultywise-longest well-formed blockchain. These excluded blocks become orphans.
Chain reorganization is a client-local phenomenon; the entire bitcoin network doesn't "reorganize" simultaneously.
What probably happened
ECC current difficulty is very low, someone started their wallet and did not make sure their wallet was synced before they started minting, so they had enough coins staking that it created a longer chain or a longer chain with more difficulty than the current blockchain, this caused the reorg.
Ways users can stop this in the future, everyone should encrypt their wallets and only begin minting after fully synced or you need someone with a massive amount of coins to stake 24x7 to make sure the current chain has a longer length with more difficulty.
Only way the Dev can stop it is , if you setup a checkpoint server to secure the blockchain from reorgs.
Basically put out a checkpoint every few hours.
