One more interesting surprise:
Have just tried to create the transformer model from Analyst directly - started with the publish of D-cube, trying 4x times and every time had this issue:
A fatal error has occurred. Dyalog APL cannot continue.
In workspace C:\Cognos\planning\bin\PLANNING.DWS (process ID:9364)
Syserror: 999 code: 0
Interpreter BuildID: 0xab0f8715
Interpreter Created: Feb 3 2014 at 17:21:12
Interpreter Version 12.1.1.20152 / 32 / Classic
If you choose to generate an aplcore, it will be saved as: "C:\Cognos\planning\bin\aplcore".
It may be possible to retrieve objects from this file using:
)COPY C:\Cognos\planning\bin\aplcore.
APL Stack trace->
#.EXPORT.StartPublish[26] data„oModel.Publish((#._US.bsl folder),'analyst\settings')#._US.Language usr pwd data
#.run[27] ŒDQ'.'
#._LX[86] …run‡done
<-End of APL Stack trace
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Tried the publishing a simple d-cube with 2 d-lists only (w/o any special characters) - got the same error...
So, at least using the CAC can hopefully publishing the table layout but can't generate the transformer, in the Analyst can't even launch the publish process...
What's going on...

Have you any ideas?