The launcher uses a different method of authentication, which is how its avoiding this error.
The standalone client login method will be removed in the next year or so, so its best to just use the launcher going forward...especially when you migrate to the new Jagex Account system either now or when we're forced to in the next year, the launcher will be how we access the game.
Can I turn in a paper without citing all sources?
"No."[1]
1. William Shakespeare,
Hamlet
, Act III, Scene 1, line 96.
01-Jun-2023 18:05:19