Which Umbraco version are you using?
16.3.1
Bug summary
It seeems when I open a SVG media from Media Picker, the preview is just blank.
Looks like at issue with how umb-file-upload-preview render preview of SVG.
It looks correct in media section itself (here via infinite editing).
In Umbraco 13 it looked something like this (looks better if the SVG image itself doesn't contain width/height attributes):
Specifics
No response
Steps to reproduce
Open selected SVG media preview from media picker.
Expected result / actual result
No response