Hi Benjamin,
regarding optiSLang: Which version Ansys Workbench and optiSLang Version are you working with? And did you checked, if you have a license available?
regarding Direct Optimisation in Design Explorer:
Then your porcess does not seem to work properly. Did you try to set up a couple of designs in the "Table of Design Points" and execute them manually? I would work here first before staring the optimization. You an "Retain" data and see if errors appear. If yes, you can go the the DP and have a closer look to the problem.
Best regards,
Markus
You are navigating away from the AIS Discovery experience