It's not solved if the issue still exists. I am having the same issue. I came to Dathomir early to get the double bladed saber, finally got to the workbench and I see the indicator dot to click and it's not clickable. This workbench is bugged. EA dont mark it as solved if it clearly isn't. I'm glad you were able to get the saber elsewhere but that doesnt fix the broken workbench on dathomir.
Still bugged, but found a workaround. For those, like me, coming early in the game to get the dual bladed saber you have to run past multiple enemies. Once you get to the bench you cant click on it if your in combat. Now I didnt know I was in combat as no enemies were around and I wasn't being attacked. You can tell your in combat if you draw your blade and it wont auto retract.
To fix this, I went to the mediation point nearby, (use the door at the top of the stairs, it creates a short cut) I rested and killed the 3 guards rather than skip and the workbench worked.
