[Cura 3.5 GCode always works at 210º nozzle.]

If you have M104/109 in your Start G-Code: take it out. This is the source of the issue on my i3. Once removed the temp is properly set.

 

I took this out completely:

 

M104 S{material_print_temperature_layer_0} ; set extruder temp
M109 S{material_print_temperature_layer_0} ; wait for extruder temp

 

I left in the bed temperature settings:

 

M140 S{material_bed_temperature_layer_0} ; set bed temp
M190 S{material_bed_temperature_layer_0} ; wait for bed temp

[Cura 3.5 GCode always works at 210º nozzle.]

I set up a print with PLA, ABS, and PETG, all with different nozzle temperatures. In all three cases, the GCODE has M104 210 and M109 210 prior to the print (I'm using brim) and appears to bump the temp to what was specified once the print begins. 3.4.1 does not have this behavior.