Cutting endpoint is not meeting. Cutted surface has dots

[parsec (FerAS)]

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Curved lines suddenly squiggly

Hi, so I have been burning lazy susan heads and some other designs that involve lots of curved lines. No big deal. It’s been working fine. All of a sudden, however, the machine is turning curved lines into squiggly lines. No idea what’s up. I’ve cleaned the gantry rails and reapplied new grease. I even redownloaded the files as SVGs and the same issue is happening, so it’s not a software issue as far as I know (they burned correctly for several days and now there’s the issue.)( I’ve attache…