Have you tried the threading in the turn cycles? I just did and it gave me the code. 12 tpi, .050 thread depth, 7 degree angle, from z0 to -.5 , xi0.5
N0 (Machine type - MachMotion Lathe Canned Cycles)
N5 (Filename: C:\Mach4Hobby\Wizards\LatheCannedCycles\Cycles\ThreadingCycle-0.tap)
N10 (Generated on 2/7/2021 at 12:58:10 PM)
N15 G00 G40 G54 G64 G80 G90.1 G99 G18 G20 (Safe Start Block)
N20 %
N25 %
N30 G00 G40 G54 G64 G80 G90.1 G99 G18 G20 (Safe Start Block)
N35 %
N40 %
N45 (Starting Gcode for Threading Cycle: ThreadingCycle-0)
N50 G50 S1000 (Spindle Speed Cap)
N55 G00 G40 G54 G64 G80 G90.1 G99 G18 G20 (Safe Start Block)
N60 %
N65 %
N70 T0101 (Tool Change)
N75 G99 (Feed per Revolution)
N80 G97 S700 (Constant Speed)
N85 M03 (Spindle Forward)
N90 M09
N95 G00 X0.7000 Z0.1000 (Rapid move to Clearance Height)
N100 G76 P020030 Q0.01 R0.003 K1
N105 G76 X0.33860771954855 Z-0.5 R0.061392280451452 P0.05 Q0.01 F12.0
N110 G80
N115 (End Gcode for Threading Cycle: ThreadingCycle-0)
N120 %
N125 M09
N130 M05
N135 M30
N140 %
N145 (End Gcode file)
N150 %