5job GMS discussion

It's not as simple as that.
It's somewhat similar to the old Error 38 issue, if anyone remembers it.
It seems to be a matter of overflowing character data, as a combination of having lots of things in inventory, in special collections (such as evo cores, V matrix, etc), possibly even quest history and God knows what else. Some people have been able to get unstuck by moving link skills away from the affected character, for example.

I don't see why a maxed node would take up more space than an unmaxed one. But most of the affected characters had not only maxed nodes, but also hundreds of unused nodes in their matrix, and thousands of node shards.

http://forums.maplestory.nexon.net/discu...racters/p1

According to the list of people... it's affecting people over 200 and most likely have some matrix progress.