Firmware bug?

I will run this g-code and create a space in step X101.000 Y46.640, see video and pictures from logic analyzer. What is the problem? This gap without acceleration and deceleration occasionally causes the stepper motor to lose its step.

G1 X49.264 Y46.678 ;(Y46.641 to Y46.678 not correct steping)

G1 X101.000 Y46.640
G1 X150.000 Y46.640
G1 X49.264 Y46.678 ;(Y46.641 to Y46.678 not correct steping)


slow speed