I have a table with a unique index constraint that works great 98% of the time. Occasionally, I will get the duplicate key error when submitting - but the row is definitely NOT in the table. If I make a small change to , say a note field, in another row and submit that THEN go back and add the row IP complained about previously then the row is accepted and no error message. Almost like a diffgram error?
Anybody seen this before?