Gcode and obtaining G02 coding

I must be doing something wrong because the code generated is always made of short straight lines even when my design is just the engraving of a circle. I would have expected a G02 rather than hundreds of G1.
Could someone help? Thank you

[Lines instead of arcs - Easel / Easel Pro - Inventables Community Forum]

(Lines instead of arcs)

Easel vs UGS (Easel non-support of Arcs) - Easel - Inventables Community Forum

Thank you for the link, this helps.