When I do a one step update on a Saturday or Sunday, I get crazy share price updates across different accounts with different brokerages. For example, most recently it updated Microsoft (+$82.21) and Exxon Mobil (-$14.86) in a Schwab account and Lockheed Martin (-$96.66) in an Empower account, among many others, on a Saturday. Obviously, the expected behavior is no update to the share price on a day the market is closed. Upon updating on a day the market was open, the share prices revert back to their actual accurate values. This has been happening for over a month.
I've done the validate/repair option, but to no effect.