WVS: Afterloader hook method to rename files generated by CAD Worker from client side viewables?

That message is coming right out of the AfterEDRloader3.java file:

// getPropertyStringValue
String subdirectory = getTransferDir(edFileName);
File pvs = new File(subdirectory, edFileName);
if (pvs == null || !pvs.exists()) {
	ret[0] = "AfterEDRloader: Return Code - Bypass";
	return ret;
}

You'd have to add some extra debugging lines to be sure but I'm guessing something is different with the bundle of files based on how the representation is being created.  (From CS66824, "When the CAD Document is then published by WVS, the pre-converted viewables in the attached PVZ are used to create the Representation content, instead of publishing using a server-side CAD worker.")

More than likely edFileName (in the previous section) is never getting set:

// get the ed file Name for this representation
String edFileName = null;
Representation ch = (Representation)ContentHelper.service.getContents(rep);
appDatas = ContentHelper.getContentList(ch);
int num_of_files = appDatas.size();

for (int i = 0; i < appDatas.size(); i++) {
	appData = (ApplicationData)appDatas.get(i);
	if (appData.getRole() != null && appData.getRole().equals(ContentRoleType.PRODUCT_VIEW_ED)) {
		edFileName = appData.getFileName();
		break;
	}
}

I'm actually curious why you would want to switch to this method of viewable generation?  There are an awful lot of disadvantages.  (Again, see CS66824.)  If it's due to worker availability when publishing very large assemblies, there are ways around this where you can direct very large assemblies to certain cad workers and everything else to other workers.