Minecraft Forums

I have been playing my modded survival world for a while without any trouble, but I recently had some major video glitches when using redstone in any of my worlds. I am using a redstone clock for an automatic fishing farm (which also doesn't work, help would be appreciated as well) and the world glitches, showing caves, flashing random colors, and overall making the game useless until I turn off the clock. I think I know what has happened because I had recently opened the "Options" menu while in my inventory, clicked "Tools" at the bottom, clicked "Data Dumps", and dumped all those options, which now seems like a bad decision. I also have incredible fps lag (from like 60+ now down to 15) and the redstone graphical glitch always happens. What can I do to prevent the glitch or reverse the data dump? I might be able to provide a screenshot of the glitches, but that probably doesn't matter.

That's funny, I do have Optifine installed. I went through all the settings until I found reset settings (for Optifine) and the glitch has stopped happening. Thanks!