"date last opened" not updating in Yosemite

Hello, I hope I can explain this correctly. I organize my flies (spreadsheets, word processing documents, photos, etc) in Finder using "Date Last Opened" and usually as a List. In Mavericks, this worked perfectly. If I opened a file which was, say, 5th from the top in Mavericks, when I opened it, I'd see it jump to the top of the Finder window, and the "date last opened" date change to today's date and time.That's the behavior I expect.

Since I upgraded to Yosemite, this happens intermittently. Sometimes the date doesn't change at all (as it should change to the date I open it) and sometimes it does. Sometimes it jumps to the top of the list, sometimes it doesn't. It often keeps the same date as the PREVIOUS time I've opened it, even after it's been opened and closed. I've had to change my views to "sort by - none" and then show "last last opened" as a column header and resort the documents, if that makes sense. This is frustrating & I don't understand why it's happening. Why wouldn't "date last opened" change when I open a document??

I can only imagine it's a glitch in Yosemite, since I'm not doing anything different than I did in Mavericks, as far as I can tell.

Does anyone know?