In order to connect to the Sybase ASE 16, you could use the 'Sybase Adaptive Server Enterprise15' adapter. For the driver class, either you can use the Sybase driver or the jTDS open source driver.
In your case, I would check if the view execution is successful in the Virtual DataPort Administration tool. If it fails only in PowerBI, then I would check the log files **vdp.log** and **vdp-requests.log** located in path <DENODO_HOME>\logs\vdp by changing the log level to 'INFO' in order to debug the issue. You could refer to the KB article [How to log the requests issued on a VDP server](https://community.denodo.com/kb/view/document/How%20to%20log%20the%20requests%20issued%20on%20a%20VDP%20server?category=Operation) for more information.
Additionally, if you are a valid support user and need further assistance, you could open a [Support case](https://support.denodo.com/) stating your problem.
Hope this helps!