Unselected video is still deleted

this behaviour has happened multiple times. I have a day full of clips that I want to delete exept 2 or 3. so I use the select all button and then manually deselect a couple of clips.

The moment I select confirm deletion, all the footage is deleted including the ones I wanted to keep.
I don’t know if they just don’t show up or if they have been deleted but obviously they’re the most important onces. I will not delete over a 100 small clips daily just to make sure 1 or 2 are not accidentally deleted.