Yes, lots. Some of my absolute all time favorites took me a while to get into. My Dying Bride's Turn Loose The Swans didn't click for a year or two, and then one day I had it on headphones while walking around a local public garden in late afternoon and everything just came together for me. I didn't think much of Opeth when I first heard Morningrise, and then a couple months later I was listening to it every day. Ghost Reveries took me something like seven or eight years to enjoy; same with Borknagar's Empiricism. Katatonia's Discouraged Ones and Viva Emptiness both took repeated listens for me to dig, I couldn't stand The Fall Of Hearts when it first came out, Bethlehem's Dark Metal grew on me pretty significantly, Gorguts' Obscura gave me a headache the first time I heard it, Death and Enslaved in general took years for me to warm up to. Couldn't stand Type O Negative or Tool the first time I heard them (Bloody Kisses and Undertow respectively). I vaguely recall completely hating Parallels by Fates Warning in the 90s, and I fell in love with it at some point over the past couple of years. Several others come to mind as well. This is why I always go back to albums I still don't enjoy. I've had my mind changed enough times that I really never know how or when something's going to click for me.