How to see thumbnails in Browser Filmstrip view (as opposed to filmstrips)

I've imported 2 clips into an event. List view in the browser window displays correctly. But when I switch to filmstrip view, I only see very long filmstrips which obliterate the window, making it useless (screenshot is attached via an Imgur link below.)

Isn't there a way to see thumbnails of the clips in the browser window? I've worked on training exercises, and that's how it worked. But in this case, all I can get are long filmstrips.

Thanks.

https://imgur.com/a/5WHagyn