I recently refilled one of my clearos and noticed it no longer is wicking as well. Despite being 3/4 full it keeps hitting very dry and giving me a burnt taste. Only when it sits for a while does it give a vape with the proper flavor and at that point I only get 1-2 decent hits before it tastes dry. What's going on here? Do I junk the clearo or can it be fixed? I've found the CE2 R4s to be very good until I encountered this issue.