I believe i must of clicked something to make me not be able to see any of my tracks / videos on the work space. i can only see file names. how can i fix this? Many thanks.
Expand the track heights. Open up the Hamburger options.
Or try Ctrl+Shift + up arrow to adjust heights.
Or Ctrl+` (top left of kb) to restore default height.
In addition to that, it looks like Track 4 is empty, so you might want to delete that. Also, if you press F11, you can see the whole timeline, and CTRL + F11 brings it back to normal. I find when projects start getting too many tracks, I try to consolidate as much as possible. I see a couple tracks that look to only have one thing on them.
Most likely pressed the ~ (tilde) key. It acts as a toggle.
@Kinvermark I learned something, good to know!