Some animated textures in resource packs not showing correctly.
EDIT: Hm. Apparently the fault WAS on my end after all (which is rather embarrassing). For those interested: when the launcher says "Unable to parse animation metadata, invalid frameindex 30" that means "your .png does not HAVE a frame 30." So you should open your image and re-count how many frames you have (and start counting with a 0 instead of a 1). Anyway, thank you to the mods and developers for sorting this out.
The now-outdated report:
Using a resource pack with many animated textures, quite a few of them were broken between snapshots 13w24a and 13w24b. The problem is still present in the newest snapshot (13w25a).
The items not showing correctly are:
-All ores
-All "block of ores"
-Glowstone
-Redstone lamp, lit
Here is the resource pack used, for reference. (EDIT: File removed due to issue being resolved.)