uber elder favourite map slot not unlocked

hey, i got the uber elder voidstone a couple of days ago and noticed that the fav slot did not unlock.
bug report reference number 779.144.421
not sure if the screenshot is shared but you can see all 4 voidstones socketed.
i even killed normal elder in the meantime (i know it shouldnt give the slot but anyway) and completed the maven 10way. still no fav slot. my quest is not completed either (still says "defeat the memory of the elder in the shaper's realm)