Hello :)
I found a bug in the Replay Mod.
But first my Informations:
OS: Windows 10 64bit
Forge Version: 1.8-11.14.3.1521
Java Version: 1.8.0_25 (Default Minecraft Launcher Version)
Mods: ReplayMod Version 1.0.7 | GLSL Shaders Mod Version 2.4.12
GPU-Driver: GeForce 368.39 (newest GeForce Driver)
So, the bug is that you can see Glass Panes (perhaps also other blocks) through all other Blocks when you Spectate a Player.
Screenshot:
