Elements with the option of multiple links won't save link choices

I think I found a bug, but I need confirmation. When I select a layout element that allows for multiple links, I can't get the links to "stick." Here are my steps:

1. Insert layout element (e.g., Tabs Bar, Link Bar, Button Bar, etc.).
2. Assign a layout element to be active using the "Selections" drop-down box.
3. Assign links to each available option within the layout element (e.g., Item 1 goes to home.bmml, Item 2 goes to account.bmml, etc.).
4. Save document (links all "stick" and work in the presentation view).
5. Navigate away from this document to another open bmml file using the tabs at the bottom of the screen.
6. Navigate back to the file referenced in 1-4 above.
7. Select item mentioned in Step 1 above.
8. Modify the link structure.

HERE'S WHAT I THEN NOTICE:

a. All but the most recently modified links lose their blue link arrows (and those newly "broken" links don't work in the presentation view, so I think they are really gone).
b. The gray preferences box still has all the right file names associated with the links that I set up in Step 3 above.
c. The "Selections" box sometimes returns to "None" and sometimes doesn't change yet visibly doesn't change from what what you originally set.

9. Re-Save the file after the changes made in Step 8.

HERE'S WHAT I THEN NOTICE:

a. The links that I lost the blue link arrows for have now reverted to "No Link" in the preferences box.

10. Modify the link structure to try and put it back where I want it.

HERE'S WHAT I THEN NOTICE:

a. The blue link arrow jumps with the most recent link I tried to fix.
b. The link file names "stick" in the preferences menu.

Then there are two options:

If I navigate away from that file without saving and then return to the file, I can modify the link structure, assign more than one link to that element, and have it work in the presentation mode. As soon as I re-save the file, I lose all but the most recent link I modified.

If I save the file before navigating away, I lose all but the most recent link I modified.

Regardless of which I choose, when it is re-saved, all of the dropdowns in the preferences box revert to "No Link."

I hope this helps you recreate the error. It's a tricky one. Let me know if you have any questions.

Thanks for your help.