Subsurface modifier has no "render" option I have a subsurface modifier on the character that I am working on. But at some point the "render" option just got ...bugged? (And I don't know when or why this happened) It doesn't look right and does not work for rendering either. 



I can however change it to a multiresolution modifier and subdivide + render it that way. 

However I would rather know what's going on here before going forward.
If you enable "Experimental" features (it looks like you have done that)



the subdivision modifier changes a bit and it allows "adaptive" subdivisions. You are not forced to use it though.

To not use the adaptive feature, just use the "Levels:" slider under it: it works exactly as the "Render:" slider works in the non-experimental version.



(you can switch back and forth, the value stays the same)