Menu Thumbnails/Menu Items - I'm stuck...

[Shelby68GT500]

Did up a project today that went off without a hitch, my menu page had 3 title items, each with their own motion thumbnails (correctmenu.jpg attached). I ended up needing to add some clips to the 3rd title item and basically went thru the same procedure over again and when I go to edit the menu now, I don't get any thumbnails, even though I have them selected and did nothing different from my first attempt (incorrectmenu.jpg attached). I'm friggin pulling my hair out on what the heck I'm doing wrong! Everything looks exactly the same under preferences and all my menu selections, but the thumbnails are gone... Hope someone has an idea..

Thanks, Bob

[Shelby68GT500]

So, I tried this again this morning (after an obvious restart of the computer) and it is working just fine... I think I'll try reboots a bit more often when I run into issues, just in case...