Image strip missing in Develop...

[przone]

I imported the images I wanted to edit, open one in Develop and made my adjustments.
Was about to 'Sync' with the rest of the imported images and... they are not there 😮
Have used Lightroom for years and never had this issue.
I go back to Library - and the imported images are there - but Develop only shows 1x image.
W.T.F. ???

Overal, I've been using Adobe products for more than 20 years on a Windows 10 PC with all patches/drivers/fixes applied - and plenty of memory/drive space etc.

[dj_paige]

Try pressing F6

[przone]

Ha!
(sort of) worked - thanks.
The screen layout is weird - with some menus arriving 'twice' - on top of each other. 
Tried toggling F6 around a dozen times and - eventually - it gave me the layout that I expected.
NO IDEA what Adobe has been doing recently, but there are weird bugs arriving all over the place.

Once again - thanks!

[Conrad_C]

If any of the surrounding panels or toolbars are missing, keep in mind that they are all accessible from the menu, so you don’t have to memorize keyboard shortcuts.

In your example of the filmstrip being unintentionally hidden, you will find that (along with lots of other panels) by clicking the Window menu and choosing the Panels submenu. So you could show a hidden filmstrip by choosing Window > Panels > Show Filmstrip. And its keyboard shortcut is shown there for reference.