Just got a new Anycubic Photon Mono X 6Ks and the RERF file on the included USB has Chinese characters in the name. (“R_E_R_Fchch.px6s” / ch being Chinese characters…) Does the printer require those characters for custom RERF test prints, or is it actually just “R_E_R_F.px6s”?

The documentation is unclear and online searching is jumbled with several issues regarding this filename across different printer models.