Taiga: Kitsu returned an error: The provided authorization grant is invalid

[Kovoschiz]

The provided authorization grant is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client

Tried several times the following actions:

1. Can log in to Kitsu on web successfully
2. Reentering password
3. Switching between Anilist and Kitsu

Taiga.log excerpt:

2018-04-06 22:01:21 [Error] http.cpp:94 taiga::HttpClient::OnError | >>
HTTP error #28: Timeout was reached
Connection mode: 5
2018-05-29 00:47:58 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514
2018-05-29 00:48:36 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514
2018-05-29 00:48:49 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514
2018-05-29 00:49:00 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514
2018-05-29 00:50:40 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514
2018-05-29 00:51:46 [Error] anime_db.cpp:211 anime::Database::FindItem | Could not find ID: 98514

No folder of my Kitsu acc in \db\user.
Entering email into Kitsu username field in Taiga returns invalid username.
New Anilist acc initializes and syncs no problem.

[erengy]

Please see #594, #589 and #468 for the same issue:

Make sure that you're entering your username rather than your display name. It's displayed as "Profile URL" in your Kitsu settings.

[Kovoschiz]

Oh I thought email works too without setting my profile url? That's why I was confused.
Does that mean we can enter our user ID into Taiga before setting profile url?

[erengy]

I'll leave this issue open until #592 is done.

I thought email works too without setting my profile url?

No, you cannot log in with your email address through Taiga yet. But I'll try to make that work in the next release.

Does that mean we can enter our user ID into Taiga before setting profile url?

I haven't really tried that, but it might work.

[Kovoschiz]

Saw this possibility being somewhere so thought I can try that. Now I see.