I upgraded to the more recent build and restarted the program. So far, the problem I described seems to have been fixed, but now the pop-up window that opens with the F3 key repeats itself when entered, i.e., I press the F3 key, the pop-up opens, I enter an issue number and then press the [enter] key; the cursor jumps to that issue and highlights the row - as expected - but then the pop-up window immediately reopens. It only repeats once until the next time I use the F3 function key. On the repeat, I've entered the same issue number and also entered a different issue number - in both cases it jumps to the designated issue and doesn't repeat a second time. But, the next time I use the F3 function, it repeats.