Data not saved in Repeater field

[Arkster]

My goal is to use the Repeater field type to create blocks that I can stack on top of each other. The blocks can at the moment be either images or longform text (or contain both).

I have everything set up, but I'm running into a problem where any data I add to the repeater field doesn't persist (doesn't appear to be saved). I've spent quite a bit of time poking around - any ideas what might be going on? I've tried this both locally and on my server.

So my steps to repeat this are:

1. create repeater item.
2. select checkbox to include images or longform (doesn't make a difference which, or if both)
   NOTE: I'm just using these checkboxes to show/hide the editor UI elements
3. save the page.

Result: the added images are no more. Same with text added to "Longform" field.

Any ideas where I can start looking? Thanks for any assistance.

Images added:

Resulting status:

Added images not present:

Repeater field setup:

page fields setup:

[Arkster]

It is now working. After trying everything I could think of I started over. Re-installed pw. Previously I had exported a profile from my server and imported that, this time I used the blank site profile and manually added all the fields. Not sure what was wrong, but it is working now.