I'm seeing a lot of these lines output to the terminal while using ShowEQ 6.3.6:
Code:
Warning: Sun 9/17/3206 7:27:40 - OP_SwapSpell  (0x3a19) (dataLen: 13) doesn't match: sizeof(tradeSpellBookSlotsStruct):8
The dataLen varies from 11 to 14.

Is this a known problem?