Charles Schwab import got BLANK bank login screen

I have Desktop version. Tried to import tax forms from Charles Schwab, followed the steps but received BLANK bank login screen. Have no way to enter CS login account and password. This has nothing to do with CS account security setup because even cannot get into CS system.  Checked this community, there are many people with exactly the same problem but the complaints were buried under other complaints. Hopefully this question can been seen by Turbotax Support team.