Using the entity flip (the flip found only with the select tool) on a line/shape, then copy pasting that line/shape, and finally HD exporting will cause an error and bug the line/shape. The visual bug is visible after causing any sort of re-render, like checking the grid on.
Steps to Reproduce:
  • Select the line tool
  • Switch to stamp stroke (for ease of viewing)
  • Draw a line
  • Select the line with the select tool
  • Toggle on either of the entity flips
  • Copy and paste the line
  • Export at 6K or higher
  • Check show grid on