Before explaining away my issues, this is my setup:
- HAS v5
- Meanwell RT-125A
- HAS Scart adapter
- Retrotink 4k
- Undamned USB adapter
- CPS-2 with Darksoft Multi (1st revision)
- CPS-3
So, for the CPS-2 (or at least mine), the hardware crashes almost every time when playing on the HAS...