Since the update numerous people have been randomly crashing (usually in dungeons when there are 3 or more people in the party or when continental warping), due to errors in the renderer2.dll file of the revision 58 patch.
It is possible to fix this error by replacing the new DLL files with revision 57 files.
You can download them

.
Replacing these dll files will remove the new blacklist feature.
Note: In order for renderer2.dll to work, you must at least replace with the same revision of pleione.dll. The other files are optional.
I GOT THIS OF THE MABINOGI WIKI
Go look for yourself if you don't believe me.