Minecraft Forums

I'm running the FTB: DW20 modpack on Minecraft version 1.4.6 with Optifine. My problem is that when I'm mining a block. When I start hitting a block then change my inventory slot the animation and process starts over. I think it restarts even when the slot updates. I notice this when I'm punching wood with wood in my slot. When I break it, I get +1 log and items don't get picked up immediately so then after awhile it restarts. I will upload a video if necessary.