"I've just double checked the..." <- on a wio-e5 (stm32wle) I get ``` ERROR panicked at 'Unknown Cortex-M core' └─ @ └─ :0 Frame 0: "HardFault handler. Cause: Escalated UsageFault (Undefined instruction)." @ 0x08003736 Frame 1: @ 0x08002080 Error: CPU halted unexpectedly. ```