Merging issues from old bspguy with animated textures

[GarompaEstomper]

This is an issue that also happens in the old bspguy. So it was never ever fixed.
There is a big problem with animated textures (for example in this case texture -0out_rk3 from halflife.wad is just a static rock texture, but happens with actual animated ones as well). Upon merging the maps end up corrupted, and if you try to launch the game will say "missing frame 1 of -0out_rk3" even if the wad contains the textures needed. Its as if the merging corrupts the animated textures.

[Qwertyus3D]

-0out_rk3 it's not animated, but random tiling texture. "-" means those textures with similar names begining with -0/1/2/3/4/5 are used randomly to cover a surface, to prevent the repititive pattern. Animated or switchable textures begin with "+".

[GarompaEstomper]

I managed to fix it by just merging the maps in different splits (map 1+2+3+4 or 1+2+3 gave the error, but splitting them 1+2 & 3+4 did not, weird I know.)
Yes you are right its not animated but I remember getting this error once when I ported another mod, and that time it did happen with an animated computer texture. To fix that one luckily I could just delete the model using it or change the texture to a static one manually, but here the rock texture was used everywhere and almost gave up.