FINALLY SOLVED
I fired up TT this morning and tried to import the things from EJ, but this time I didn't get an error; it just did nothing. Weird. So I went over to EJ and tried to log in and found that my account had been temporarily suspended! I was pretty aggravated at this point.
I called up EJ to have them unlock my account and then asked them why it was locked. The fellow said that it could have been because a third party unsuccessfully tried to access my account too many times. I told him it was most likely me trying to get TT to import my stuff, and he said he'd heard of issues this year.
He asked if my password had special characters (it did, a bunch) and, if so, to remove them and to have the length of the password be under 20 characters. I changed the password, then logged out and in of EJ just to be sure it worked.
I then went back into TT and tried the new EJ account credentials AND I did the "add two characters, then delete the two characters" trick @DaraLO mentioned. THIS WORKED. (It may have worked without the two character dance, but I'm not going to go back and try it.)
So, after weeks of frustration, it seems to me that the two biggest errors on TT's part are:
- The error message that is given is misleading. The issue is not that our EJ usernames or passwords are wrong.
- TT needs to properly handle passwords that are arbitrarily long and have special characters. It's clear to me that TT's code only expected letters and numbers.
Thanks to all of you who persevered in figuring this out. TT might owe us all a nice thank-you gift for this nonsense.
