Please upload and embed these images using the tool in the toolbar instead. Do not attach. Our assistants do not download files. Sorry.
You have an in and out point set on the timeline, the light gray area is showing the area of the timeline that is enclosed by those marks.
To remove type Option (Alt) + X to remove the in and out marks.
I pressed ALT + X and nothing happened
Edit: CTRL + SHIFT + X worked
We Mac guys don't have access to PCs so we give the wrong shortcuts sometimes. That guess would normally be correct but....not this time.
You can always consult the keyboard shortcuts in documentaton moving forward in testing shortcuts.
Sorry for that but glad MtD got you going again.