So this wasn't a crash, rather a bug with the replay
- I use Windows 10 64-bit as my OS
- 1.8-Forge11.14.3.1450
- Java 1.8.0_25
- I have OptiFine_1.8.0_HD_U_D5 installed in addition to your mod
- By simply entering a replay the bugs are triggered
Just BTW I have an ATI Radeon HD 4200 with the latest drivers since this looks like a graphical bug
Screenshot
If you can fix it then please help. Your mod is one of the best solutions I've seen for recording minecraft and I'd love to be able to use your mod for my YT channel.