Unable to list and download the courses with a TA account

[southlight1023]

With version v2.2.2, the following message is shown right after logging in with my TA account:
2022-12-28 16:21:04 - DEBUG - Starting new HTTPS connection (1): ceiba.ntu.edu.tw:443
2022-12-28 16:21:04 - DEBUG - https://ceiba.ntu.edu.tw:443 "POST /index.php?error_check=OK HTTP/1.1" 302 0
2022-12-28 16:21:04 - DEBUG - https://ceiba.ntu.edu.tw:443 "GET /ta/ HTTP/1.1" 200 None
2022-12-28 16:21:04 - DEBUG - https://ceiba.ntu.edu.tw:443 "GET /ta/?op=personal HTTP/1.1" 200 None
2022-12-28 16:21:04 - INFO - 登入 Ceiba 成功！
2022-12-28 16:21:04 - INFO - 正在取得課程...
2022-12-28 16:21:04 - DEBUG - https://ceiba.ntu.edu.tw:443 "GET /ta/index.php?seme_op=all HTTP/1.1" 200 None
2022-12-28 16:21:04 - ERROR - local variable 'course_sn' referenced before assignment

The courses are accessible by logging in with the official ceiba site:

They were not shown in the "全部" list, however, which might be the cause:

Is there anything I could do instead of downloading the course one by one, considering this may be a common issue?
Edit: It works perfectly with both of my student accounts, by the way.

[jameshwc]

Sorry for the late reply.

It looks like a bug in ceiba itself, and unfortunately I cannot think of an easy workaround right now.

I've raised the issue to the ceiba maintenance team and let's see if they have clues about it. Otherwise I might take some time to create a special version of this downloader to handle your case.

(this is a rare case though, you're the first one to bring about this issue considering it has been used by thousands of people)

[southlight1023]

It might be related to the TA account with my first guess, which may explain why most people didn't report or encounter this issue. Thanks anyway for looking into it.