@lombric I have also discovered this issue today, added the StamPLC AC module into my UiFloww V2.4.3 environment and it crashes the controller. I had to force reboot it and reflash it with M5 Burner to recover it. VERY frustrating as this is a hardware software combination all built by M5 Stack. I have no idea how to resolve this as your post is from Feb 2026 and there are zero responses...