I opened Quicken today, and found that my Discover account has a new Opening Balance transaction added, as a payment. I wouldn't have noticed, except that the new transaction is dated June 19, 2079. The other strange thing is that the amount is almost unique - only one other transaction since 1991 shares the same amount, and it's a charge from June 11, just a few weeks ago. The data was downloaded using One Step Update, and lots of other data was downloaded at the same time, with no problems.
Q1: Where did this transaction come from?
Q2: What can/should I do about it?
Quicken Premier for Windows R57.16 (this update just downloaded and installed today when I opened Quicken).