Hi Scott, I’m having the same error here.
No problem with EZ Drummer or the Twisted Kit EZX, but the issue occurs with the Drumkit from Hell EZX and the Latin Percussion EZX.
For both, I have unzipped the download file and installed the kits successfully:
In the EZDrummer/EZX_Percussion/Sounds folder (for example), I only have 2 files:
And when loading these kits on EZ Drummer I’ve got the following error message:
I hope this helps for debugging