If you’re using AE text as a custom layer and then extruding using Element, the UV will be stretched so you’ll get that weird texture wrap. If you want better control over your textures its better to make it in Cinema and bring the whole polygonal model into Element.
Inside Cinema the standard UV projection should work fine, but if that doesn’t look right try box projection and refit the texture as you need. Then once you’re happy with the fit; right-click and ‘generate UV co-ordinates’ so that Element will fit it correctly. Then if you still want to animate the texture just replace the texture with the custom layer from there.