https://www.openstreetmap.org/way/31571323/history

It looks like the building:levels tag got deleted.  Also, Marin Wealth Advisors probably doesn't occupy the entire building, if this is even the right building (the sign over the entrance says "2175-2185"; 2121 is California Plaza next door: https://www.mapillary.com/app/?pKey=1110587526077387 )