Invisible Sprites

I'm using the OpenGL mode on the Launcher to use an MD2 model. However, several sprites become invisible in OpenGL mode for me. Running through Techno Hill Zone, several Badniks (most, actually), springs, checkpoint signposts, and the end-level signpost are all invisible. There may be more that i missed because it's all, well, invisible! Rings, a handful of badniks, and the level itself are all in attendance, as well as the MD2 model.

Does this normally happen in OpenGL mode? Or do i have something wrong somewhere?

EDIT: I just used to GR_MD2 OFF command to turn the model off and the missing elements are back. It's only when using the MD2 model that we see this problem :/ So is there a workaround, or i can't use MD2 models until perhaps OpenGL mode is officially supported?

Maybe your MD2.dat file contains models that don't exist in your MD2 folder.

Wow, how simple was that! I was using the MD2.dat that was provided with the MD2 file, but it was a solid 70 lines long at least. A lot longer than "PLAY PLAY .MD2 3.0" XD

It's working perfectly fine now, thank you!