I've got hundreds of subclips that show the proper Video In and Out points in Project Panel, and in Source Monitor w/ Source Timecode Overlay, but in the actual Metadata panel for the clip, the Video Out is incorrect and the value is actually before the Video In point (see screenshot). The duration is the same, and this hasn't actually caused me any problems - but it's unnerving.
What happens if you change it? Just add an 'out' mark in the middle of the clip. The Video Out Point is simply where this 'out' mark is on the subclip. The 'Media Start' and 'Media End' columns should indicate the extents of your subclip.
If I change the out point to what it should be (just copy TC from Video Out point and paste that value into the actual Metadata Panel for the clip) everything falls into place. You'll notice most of the clips in screenshot below show Media Start/Stop/Duration as the entire Tape - but the one I changed - it now shows the correct "Media" values as well as the correct "Video" values in the Metadata Panel.