To resolve the layer shift issue, please download the file provided below, copy it to your TF card, and then print the file on your printer:
https://drive.google.com/open?id=1j2AYDr77ar_o_WF_8EzdHx3YcWPQ42SZ&usp=drive_fs
Printing this file will help correct the issue and restore stable printing performance.
After the print is completed, please test your original model again and let us know whether the problem has been resolved.
If you continue to experience layer shifting, please feel free to contact us for further assistance.