Laser beam not starting quick enough

Hi, using Lightburn with a Thunder laser and HM rotary.
The first part of the design is a circle and it is getting cut off on the edge. That is the spot where the laser starts and it looks like the laser doesn’t fire quick enough and misses the first couple of lines.
Speed = 200, Max power = 18, Min power = 12, fill mode, line interval = .050, 1 pass, bidirectional


That’s going to be slack in the belt on the rotary, not the laser or the software. Read here for a couple ways to fix it:

Thanks, adding an extra line below the image helped solve the issue.

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