A high-severity issue, already fixed a year ago in Bitcoin Core. “The primary effect of this inconsistent state is that block template creation by a miner becomes impossible: the generated template fails validity checks. Consequently, a node that has undergone such a reorganization cannot produce blocks until it is restarted, a process that reloads the *mempool* into a consistent state. This issue was resolved in PR #33504 by introducing a `bypass_limits`-based condition for TRUC checks, ensuring that sibling eviction does not occur during transaction reinsertion following a reorganization.”