SigmaDSP AEC Algorithm user problem

Hello, we have purchased the SigmaDSP AEC Algorithm and download it but we can't use it.

I installed Sigmastudio 4.6 and aeck algorithm.

I copy the aeck-algorithm's ADICtrls.dll to overwrite  Sigmastudio 4.6 installation diretory.

Then add .DLL to my Sigmastudio
When i use trial algorithm, it's ok and and AEC works to my ADAU1467
But if i replaced trial vision to vision with license, it will not work to my ADAU1467. Could you help me ?