eM Working Well, but Incorrect Password Window Continues to Appear

Just installed eMClient on a new laptop. Running Windows 7, with two email accounts. Both IMAP and SMTP are working, sending and receiving successfully, but I keep getting error windows for the default email account saying that the password is incorrect. Yet, it continues to send and receive. Anybody ever seen this before? Default email is yahoo.com, additional account is hughes.net. Using eM Client free version v3.5

Hello,
is the problem still actual?

I am also facing the same issue. My yahoo account is receiving emails, but I keep getting the password incorrect error as a pop-up dialog. I am on Windows 7 64-bit.

https://discourse.emclient.com/emclient/to…

It is a known bug on Yahoo servers so I cannot provide you any solution at the moment.