I can imagine all kind of pictures in my head, but the thing for me that i cant do it for more than a second or so. Does such issue have a name?
Imagination is a spectrum as far as I know only the two ends have a name.
Vviq os often used to rate visual imagination : https://davidfmarks.net/vividness-of-visual-imagery-questionnaire-2/
Aphantasia can affect other sensory modalities as well but I’m not aware of any methods to measure
Or maybe hypophantasia : https://aphantasia.com/topic/hypophantasia/
did you make test from first link? are you able to produce image and for how long can you keep the image in your mind? i can do it quite well, i can also change styles, environment, colors, details etc but i struggle to keep same image stable, feels like its sliding away and mixing up with something else