Question osee T7 7inch Camera Monitor

[Magician777]

Hi Guys, just bought a "

osee T7 7inch Camera Monitor"​

It hooks up with my Nikon Z5 camera, it's pretty good.
My question is on my old monitor, I could review the pic I had just taken vie my 7" monitor.
On my new monitor, crystal clear picture, but I cant seem to review it via the monitor.
Any Ideas?
Many Thanx
Gary
PS it works with video, but not with still pictures.