Changing answer on radio button for one record causes problems for other records

Hi-
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I have a table list of records with an "Edit Record" attached to each record. I took the following steps and got a very strange result:
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1. Click on Edit Record for a random record on the list.
2. Change a value for a radio button and update that record, then return to the list.
3. Choose another record to edit.
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Result: the value of the radio button of the second record mimics whatever the value was changed to for the first record, even if the value for the second record is different in the db table. If I change the value for the second record and update it, then that value is carried over to all the other records, even the first one that I changed initially. Again, the data in the db table does not necessarily correspond to that value.

I forgot to add a crucial piece of information. All the above happens during a single login session. If you log out and log back in again, the data for the field controlled by the radio button will show correctly for every record... until you try to change it. Then you are back to the scenario above.

Hi-
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This is still a problem, but it goes beyond radio buttons. When you update fields, the most recent information typed in is carried over to other records in the table list no matter what the data is in the db. Any idea why this is happening or how to fix it? Thanks.