At random times and random places blocks they just disapear when placed and do not givie me the block back. It happen alot ,Im running MechincalTitan mod pack from ftb launcher. I also added and removed a lot of mods. If i place a block on the random spot theb lock keeps making my placed blocksi it still disapears over and over. I have 8 gigs of ram a 6 core processor amd 3.5ghz. My video card is nvidia gtx 660t 2 gig. I have tried jave 7 and 8. Im on linux Archlinux 64bit Minecraft 1.7.10. I tried moving my spawn point but it is still not working. For cobblestone not a big deal but when more valuble stuff it sucks.
Also my ender poral will not start it just catches fire.
Also my ender poral will not start it just catches fire.