could not get 2.3.1 patcher to actually patch (ERROR)

Quote from ibbad85

Game client version 0.12.12.31.19.428

It needs to be game version 0.12.12.15.17349. I am UNSURE if you can use the patcher more than once per file. If you can, you need to patch your game THREE times before using 2.3.1. You should try using the patcher to downgrade to 12.12.30.19078 then use it again to downgrade to 12.12.15.18346, then from that version to the version you need, being 12.12.15.17349. If the patcher won't allow for the same file to be patched more than once, then I am out of ideas for a fix.