I'm taking 4 circles and constructing a cylinder. The cylinder is the center of a long shaft so I can't get all the way around the part: I have to use two tip angles.
You can also F9 the feature and it will show you what hits its using from your list of circles, this is useful because I've seen where you think you have all the .hits and one of the circles is not being used.
The code you posted says
CONSTR/CYLINDER,BF,CIR14.HIT[1..CIR14.NUMHITS],CIR51.HIT[1..CIR14.NUMHITS],CIR52.HIT[1..CIR14.NUMHITS],CIR53.HIT[1..CIR53.NUMHITS],,
Shouldn't it be
CONSTR/CYLINDER,BF,CIR14.HIT[1..CIR14.NUMHITS],CIR51.HIT[1..CIR
51.NUMHITS],CIR52.HIT[1..CIR
52.NUMHITS],CIR53.HIT[1..CIR53.NUMHITS],,
I checked some things and the change went into 2020R2 SP9, 2021.1 SP4, 2021.2 and higher.
I agree that it would not work in 2020R2 first build. The default would have been [1..1].