Controversial bitcoin scaling proposal Segwit2x's testnet forked yesterday, creating two different and incompatible testnets, a bad sign for the upcoming scaling update. Nodes running older bitcoin software continued on as they normally would but nodes running the new Segwit2x code stalled at block 27070 for over 20 hours as a result of the issue. Reactions were mixed, with some dismissing the controversial scaling proposal for perceived lingering issues, while others defended the misstep as only a small stumbling block that wouldn't happen during a live deployment.