Got it. The failure was by me (shame)... Please look at https://github.com/nullsibnelf/Marlin temperature.cpp from line 2182 to line 2196.   the fork is at the moment not for dual head (because i changed back to single nozzle e3d). But I added all the changed mentioned here in this post. so this should fix your compile error. In fact, it was a missing '}' at the right possition. Sorry for that.