It seems to be working fine on my end. Do you have a replay where it didn't work with Yubel? Remember that Yubel's effect is a "When" optional Trigger Effect ("When.. you can.."), it can miss timing, so if the last thing that happens is not Yubel being destroyed, then you cannot use that effect.
If it didn't miss timing, do you have a replay where it didn't work? And if so, can you attach it to your post here, stating which turn it happened?