I'm having this same issue with S3d 3.1.0 with a Taz 6. Cura it works fine. The set point I switched to 245 to print some Taulman Tech-G and the set point stays at 245 but the hotend is dropping in temp. This doesn't happen with CUra at all, And this happens starting at the 2nd layer at all. WTF is ...
Thanks for the base profile, looks similar to the one I came up from Cura. I notice you had your filament diameter set or left to 1.75 though in your profile. Taz 6 should be 2.89 for the filament. I'll give this a go having to make a few tweaks for the NGEN filament. Thanks!
What did you get to get past this issue with the gCode, i'm having the same issue with the start code copied over from Cura's profile on this trying to hack this together myself. Some help here with the profile for the Taz 6 would be great, thanks