Screenshot: https://i.imgur.com/tPYkAZd.png

What happens

1. When loading the world, Some of my larger signs which use the Advanced Display Panel Extenders will glitch and appear as full blocks.
2. The only way to fix this is to break-and-replace one of the extender panels.

I'm using 2.3.1A-Butts alongside IC2 2-2.2.789-experimental

Is it possible for you to send me a world download? This bug is rare and I want to squash it.

Here you go.

Link: https://dl.dropboxusercontent.com/u/101772327/New%20World.zip

Also, in case this could be helpful, here's my PC specs.

Processor: Intel Core i7
RAM: 8 GB
Graphics: Intel Integrated Graphics 4400
OS: Windows 8.1 x64

This bug has been here for years, and it has to do with chunks, if you bring up chunk borders you should see that half of your panel is on one chunk and the other one is on another chunk.

This can be reproduced quite easily and is related to the order the extenders and the core panel block are rendered. When the core is rendered then all expanders in already rendered chunks render correctly but all extenders in chunks that are not yet rendered are bugged.

So to reproduce you just need to build a panel on a chunk border, stand on any side of it and then leave/rejoin the game to trigger a fresh render. As the rendering starts with the chunk the player is in and extends outwards.

Nice graphics yo.