Upfront bug? Text changes not saving...

Hi,

Hope all's well. 2nd ticket!

Newbie here. Seems like I've stumbled on a bug with Upfront. Please see screencast here:

As you can see after the text changes which I've made aren't being shown after saving.

Any ideas?

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Also, is it possible with Upfront to:

Add two background images
Both 50% width
Both to occupy full screen (not restricted to 100% container)
Then overlay text on top.

Example screenshot attached.

Thanks for your help.

Kevin