App Password no longer working properly with gmail - sign in errors after updating password

This just started happening like 2 weeks ago without any changes on my end. I generated a new app password in settings which works for a day but then stops working. I've gone through this circular issue for the past two weeks.

Any reason this could be happening?

Also is it possible to see what app passwords I've generated? Seems like a bad design decision if I can't keep track of the apps I generated an app password for.