Some pressure cookers, sadly, can't be used on all stoves. It is what it is. So sorry about this. But it also teaches ME a lesson as well. To make sure that the pressure cooker that I buy is the right one for the stove in use.
Most if not ALL of them, now come with a bright red indicator that pops up in the lid when the pressure has built up inside the cooker. This keeps the lid from being opened while there's pressure in the cooker.
All pressure cookers HAVE to release SOME steam from the cooker when the pressure builds up in order to maintain even pressure and to keep the pressure & steam from building up too much. If that happens, then a safety release valve opens, to let the pressure escape safely.