Better combat weapon animations are not working for some weapons. I haven't tested every weapon type but I noticed this issue with the pike and saber. I am also using the undergarden version and these issues are also present in that mod.

And a small side issue the swinging sounds for the battleaxe are not consistent with the original spartan weaponry mod (ice & fire and undergarden versions).

Edit: Someone in the comments section mentioned this issue saying that its the saber, javelin, tomahawk, throwing knife and pike that are incompatible with better combat. I would assume these weapons are problematic for the undergarden compat mod as well

Fixed in 7c2da23