Can't socket any support skill gem on Malice

I was just chaging my setup a bit and I had this interesting bug while I was unnequipping my Omen Sceptre. This is what happened after I equipped it back.






Now I can't use any of the support skill gems on it, and I don't know what it si causing it.

I managed to fix this bug after I equipped another Omen Sceptre that I had in my inventory, and somehow that made the previous one I was using to be able to fit the support skill gems back in the Malice skill again. Very weird bug.

For the future generations. I've had the same issues in 0.4 league.

The issue occurs if for some reason your character does not satisfy requirements to equip Malice Sceptre in given weapon set.

In my case the issue was the Vertex with Equipment has no attribute requirements which although it allowed me to equip the sceptre it didn't allow for any supports to be equipped (I didn't have sufficient str without it)

To work around it equip some attribute gear, add the supports than unequip the attribute gear.