imported user unable to login

For some undetermined reason, when I import users, the password associated with the import no longer seems to work. This was working previously, however I have no idea what would have changed to trigger this behavior. Same import file as before, but now I get a message saying the password is invalid when I attempt to login.

Here is the sample import file:

user_login,user_email,user_pass,display_name,first_name,last_name,batch-id
dantestAAA,[email protected],=1stLogin,Dan TestAAA,Dan,TestAAA,cc003

As I said, last time this worked successfully was a few weeks ago, now it doesn’t work, well, the import works, but the password doesn’t. I tried using “password” instead of “user_pass” but that didn’t make a difference. I deactivated all the plugins and reactivated them – to no avail.

batch-id is a custom field and that gets imported just fine, for some reason it is just the password that doesn’t work.

Any thoughts on what might be going on and/or how to troubleshoot this?

Thanks.
-Dan