Fulcro 3.4.16 and Fulcro Inspect 3.0.4 were just released. This version fixes the Inspect Tool’s “Time Travel” feature, which got broken by various optimizations that made the history tracking much faster in development. The Inspect version will auto-update from Chrome store, but if you want to download it and manually install it, or you want to just use the websocket-based electron app you can find those in the Releases section of the Fulcro Inspect repository. NOTE: The live DOM preview of the database time travel requires the update to Fulcro 3.4.16. https://github.com/fulcrologic/fulcro-inspect/releases