Another EDIT (just a few minutes after my latest post):
I have just done the following. I created a new Artist called “Academy of St Martin in the Fields CE”. I chose this name to resemble “Academy of St Martin in the Fields Chamber Ensemble” closely so as to be able to filter both of them out in the Artists list. I then (with some trepidation 'cause I was certain it was a sure road to more crashes) merged the two of them choosing the original ensemble as the primary one. But to my utter surprise this turned out to be the solution! I can now click on any “Academy of St Martin in the Fields Chamber Ensemble” link and it does not crash anymore. Thanks, Tony!