Value entered through Ctrl + G in Lookup disappears after 1-2 seconds


In ax 2009,I have customized lookup in which I am filtering lookup values through Ctrl + G ;but after filtering records with some keywrds,records remains just for 1-2 seconds only.

eg.If I am filtering Employee id as a02344,it shows specific record of a02344 but disappears after 1-2 seconds.

I found that system itself has such scenarios where records exists for just 1-2 seconds through ctrl + g in lookup.

Can we do anything to fix it?