Sounds kinda like blocking, common in cheap crappy keyboards. https://deskthority.net/wiki/Rollover,_blocking_and_ghosting https://deskthority.net/wiki/Rollove

Sounds kinda like blocking, common in cheap crappy keyboards. https://deskthority.net/wiki/Rollover,_blocking_and_ghosting https://deskthority.net/wiki/Rollover,_blocking_and_ghosting This is usually done for a reason (namely, terrible keyboard hardware).