BURDENS REST SOLUS

After you craft solus 2 and you get rid of solus it seems you can not get it again. It shows it can be crafted in burdens rest under General Grune drop but it doesn't seem to drop the second time. Solus is one of the only items I'm missing now and I have exhausted the possibility of it dropping from General Grune as I completed that quest 250+ times without it dropping. It should drop within the first 3 tries like it did the first time.