I think this is a slightly different version of a issue previously reported here.
If I am reading the screen shots accurately, you have two repetition pairs of the same repeating field on your layout--each pair set for a different pair of repetitions.
A workaround you might consider is to replace the repeating field with a table of related records.
For More Information see: http://forums.filemaker.com/posts/ea146d9cec?start=1&stop=10#189429
This is one of many acknowledged bugs that can be found in the Known Bug List thread here in the Report an Issue section of the forum.
It can also be downloaded as a database file from: https://www.dropbox.com/s/jt09b82i0xijbu3/FMP%20Bugs.zip
Thanks, dug around and couldn't find this; thanks for the link.
The repetitions are just for temp data for a funky report I'm going. Probably just define a bunch of separate fields for now. Boy I'm happy for Set Field By Name. :)